:root {
            /* 使用网站的主要配色方案 */
            --research-primary: var(--washi-indigo);
            --research-secondary: #4d7a8c;
            --research-accent: var(--washi-green);
            --research-text: var(--text-color);
            --research-light: var(--light-bg);
            --research-dark: var(--dark-bg);
            --research-highlight: #a7c4b5;
            --research-beige: var(--washi-beige);
        }
        
        body {
            font-family: 'Noto Sans JP', sans-serif;
            color: var(--research-text);
            background-color: var(--research-light);
        }
        
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Noto Serif JP', serif;
        }
        
        .page-banner {
            background: linear-gradient(135deg, var(--research-primary) 0%, var(--research-secondary) 100%);
            padding: 5rem 0;
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .page-banner::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('img/news/washi-texture.png');
            background-repeat: repeat;
            opacity: 0.15;
            z-index: 1;
        }
        
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        
        /* 专业领域卡片样式 */
        .research-card {
            border: none;
            transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            border-radius: 16px;
            overflow: hidden;
            background-color: #fff;
            margin-bottom: 2.5rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            position: relative;
            height: 100%;
        }
        
        .research-card::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            box-shadow: 0 15px 35px rgba(var(--primary-rgb), 0.2);
            opacity: 0;
            border-radius: 16px;
            transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            z-index: -1;
        }
        
        .research-card:hover {
            transform: translateY(-10px);
        }
        
        .research-card:hover::after {
            opacity: 1;
        }
        
        .research-img {
            height: 240px;
            width: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .research-card:hover .research-img {
            transform: scale(1.05);
        }
        
        .research-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--research-accent);
            transition: all 0.3s ease;
        }
        
        .research-card:hover .research-icon {
            transform: scale(1.1);
        }
        
        /* 按钮样式 */
        .btn-research {
            background-color: var(--research-primary);
            border-color: var(--research-primary);
            color: white;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .btn-research:hover {
            background-color: var(--research-primary);
            filter: brightness(110%);
            border-color: var(--research-primary);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(var(--primary-rgb), 0.3);
        }
        
        .btn-outline-research {
            color: var(--research-primary);
            border-color: var(--research-primary);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .btn-outline-research:hover {
            background-color: var(--research-primary);
            border-color: var(--research-primary);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(var(--primary-rgb), 0.2);
        }
        
        /* 特色区块样式 */
        .feature-block {
            padding: 2.5rem;
            border-radius: 16px;
            background-color: #fff;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
            height: 100%;
        }
        
        .feature-block:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(var(--primary-rgb), 0.1);
        }
        
        .feature-icon {
            width: 80px;
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: rgba(var(--primary-rgb), 0.1);
            color: var(--research-primary);
            border-radius: 50%;
            margin-bottom: 1.5rem;
            font-size: 2rem;
            transition: all 0.3s ease;
        }
        
        .feature-block:hover .feature-icon {
            background-color: var(--research-primary);
            color: white;
            transform: rotateY(180deg);
        }
        
        /* 研究项目时间轴样式 */
        .research-timeline {
            position: relative;
            padding-left: 50px;
        }
        
        .research-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            left: 20px;
            height: 100%;
            width: 2px;
            background-color: var(--research-primary);
        }
        
        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
        }
        
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        
        .timeline-dot {
            position: absolute;
            left: -50px;
            top: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: white;
            border: 2px solid var(--research-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1;
            transition: all 0.3s ease;
        }
        
        .timeline-item:hover .timeline-dot {
            background-color: var(--research-primary);
            color: white;
            transform: scale(1.1);
        }
        
        .timeline-content {
            padding: 20px;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }
        
        .timeline-item:hover .timeline-content {
            box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.1);
            transform: translateY(-5px);
        }
        
        /* 研究出版物样式 */
        .publication-card {
            display: flex;
            border-radius: 10px;
            overflow: hidden;
            background-color: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 1.5rem;
            transition: all 0.3s ease;
        }
        
        .publication-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(var(--primary-rgb), 0.1);
        }
        
        .publication-img {
            width: 120px;
            height: 160px;
            object-fit: cover;
            transition: all 0.3s ease;
        }
        
        .publication-card:hover .publication-img {
            transform: scale(1.05);
        }
        
        .publication-content {
            padding: 15px;
            flex: 1;
        }
        
        .publication-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: #777;
            margin-bottom: 0.5rem;
        }
        
        .publication-tag {
            display: inline-block;
            padding: 0.25rem 0.5rem;
            background-color: rgba(var(--primary-rgb), 0.1);
            color: var(--research-primary);
            border-radius: 4px;
            font-size: 0.75rem;
            margin-right: 0.5rem;
        }
        
        /* 动画效果 */
        .animate-entry {
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.5s ease;
        }
        
        .animate-entry.animate {
            opacity: 1;
            transform: translateY(0);
        }
        
        /* 波纹效果 */
        .ripple-effect {
            position: absolute;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.7);
            width: 100px;
            height: 100px;
            margin-top: -50px;
            margin-left: -50px;
            animation: ripple-animation 1s;
            opacity: 0;
        }
        
        @keyframes ripple-animation {
            from {
                transform: scale(0);
                opacity: 1;
            }
            to {
                transform: scale(3);
                opacity: 0;
            }
        }
        
        /* 统计数字样式 */
        .stat-item {
            text-align: center;
            padding: 2rem 1rem;
            border-radius: 10px;
            background-color: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }
        
        .stat-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(var(--primary-rgb), 0.1);
        }
        
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--research-primary);
            margin-bottom: 0.5rem;
            line-height: 1;
        }
        
        .stat-label {
            font-size: 1rem;
            color: var(--research-text);
        }
        
        /* 响应式调整 */
        @media (max-width: 767px) {
            .page-banner {
                padding: 3rem 0;
            }
            
            .research-card:hover {
                transform: translateY(-5px);
            }
            
            .research-timeline {
                padding-left: 40px;
            }
            
            .timeline-dot {
                left: -40px;
                width: 30px;
                height: 30px;
            }
            
            .publication-card {
                flex-direction: column;
            }
            
            .publication-img {
                width: 100%;
                height: 200px;
            }
        }