/* ====================
   专家团队页面样式 - 昱环智慧科技官网
   ==================== */

/* 页面头部 */
.page-header {
    position: relative;
    padding: 120px 0 80px;
    background: var(--gradient-primary);
    color: var(--white);
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="70" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="70" cy="10" r="1.2" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

.header-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.header-content h1 {
    font-size: 3.5rem;
    margin-bottom: 16px;
    font-weight: 700;
    font-family: 'Noto Serif SC', serif;
}

.header-subtitle {
    font-size: 1.2rem;
    margin-bottom: 24px;
    opacity: 0.9;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.9rem;
    opacity: 0.8;
}

.breadcrumb a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition-fast);
}

.breadcrumb a:hover {
    opacity: 0.7;
}

/* 团队统计 */
.team-stats {
    background: var(--white);
    padding: 60px 0;
    margin-top: -40px;
    position: relative;
    z-index: 10;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--background-light);
    border-radius: 12px;
    border: 2px solid var(--border-color);
    transition: var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.stat-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--primary-blue);
    stroke-width: 2;
}

.stat-content {
    flex: 1;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
    font-family: 'Noto Serif SC', serif;
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* 专家分类导航 */
.experts-nav {
    background: var(--background-light);
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.nav-filters {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 24px;
    border: 2px solid var(--border-color);
    background: var(--white);
    color: var(--text-secondary);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 500;
    font-size: 0.9rem;
}

.filter-btn:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.filter-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--white);
}

.search-box {
    display: flex;
    justify-content: center;
    max-width: 400px;
    margin: 0 auto;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 14px 50px 14px 20px;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.search-box input:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(42, 92, 145, 0.1);
}

.search-box button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border: none;
    background: var(--primary-blue);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
}

.search-box button:hover {
    background: var(--primary-green);
}

.search-box button svg {
    width: 18px;
    height: 18px;
    stroke: var(--white);
    stroke-width: 2;
}

/* 专家团队展示 */
.experts-section {
    padding: 80px 0;
    background: var(--white);
}

.experts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    margin-bottom: 60px;
}

/* 专家卡片 - 学术风格设计 */
.expert-card {
    background: var(--white);
    border: 2px solid var(--primary-blue);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative;
    cursor: pointer;
}

.expert-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(42, 92, 145, 0.15);
    border-color: var(--primary-green);
}

.expert-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: var(--background-light);
}

.expert-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

.expert-card:hover .expert-image img {
    transform: scale(1.05);
}

.expert-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(42, 92, 145, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.expert-card:hover .expert-overlay {
    opacity: 1;
}

.view-detail-btn {
    padding: 12px 24px;
    background: var(--white);
    color: var(--primary-blue);
    border: none;
    border-radius: 25px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.view-detail-btn:hover {
    background: var(--primary-green);
    color: var(--white);
}

.expert-info {
    padding: 24px;
}

.expert-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.expert-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    font-family: 'Noto Serif SC', serif;
}

.expert-titles {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.title-tag {
    padding: 4px 12px;
    background: var(--background-light);
    color: var(--text-secondary);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.title-tag.primary {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.expert-affiliation {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.expert-affiliation svg {
    width: 16px;
    height: 16px;
    stroke: var(--text-light);
}

.expert-research {
    margin-bottom: 20px;
}

.expert-research h4 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 600;
}

.research-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.research-tag {
    padding: 6px 12px;
    background: var(--gradient-light);
    color: var(--primary-blue);
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(42, 92, 145, 0.2);
}

.expert-achievements {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 20px;
    padding: 16px;
    background: var(--background-light);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.achievement-item {
    text-align: center;
}

.achievement-number {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-blue);
    font-family: 'Noto Serif SC', serif;
}

.achievement-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.expert-summary {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 加载更多 */
.load-more {
    text-align: center;
    padding: 40px 0;
}

/* 专家详情模态框 */
.expert-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.expert-modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--white);
    border-radius: 16px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    z-index: 1001;
    box-shadow: var(--shadow-heavy);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
    z-index: 1002;
}

.modal-close:hover {
    background: var(--error);
    border-color: var(--error);
}

.modal-close svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-primary);
}

.modal-close:hover svg {
    stroke: var(--white);
}

.modal-body {
    padding: 40px;
}

/* 专家详情内容 */
.expert-detail {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 32px;
    margin-bottom: 32px;
}

.expert-avatar {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    overflow: hidden;
    border: 3px solid var(--primary-blue);
}

.expert-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expert-details h2 {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
}

.expert-bio {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.detail-section {
    margin-bottom: 32px;
}

.detail-section h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    color: var(--text-primary);
    border-bottom: 2px solid var(--primary-blue);
    padding-bottom: 8px;
}

.publications-list,
.projects-list {
    list-style: none;
    padding: 0;
}

.publications-list li,
.projects-list li {
    padding: 12px;
    margin-bottom: 8px;
    background: var(--background-light);
    border-radius: 8px;
    border-left: 4px solid var(--primary-blue);
}

/* 动画效果 */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .experts-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 100px 0 60px;
    }
    
    .header-content h1 {
        font-size: 2.5rem;
    }
    
    .team-stats {
        padding: 40px 0;
        margin-top: -20px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .stat-card {
        padding: 16px;
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    
    .experts-nav {
        padding: 30px 0;
    }
    
    .nav-filters {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 8px;
    }
    
    .filter-btn {
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    .experts-section {
        padding: 60px 0;
    }
    
    .experts-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .expert-card {
        margin: 0 auto;
        max-width: 400px;
    }
    
    .expert-achievements {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .achievement-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    .achievement-number {
        font-size: 1.1rem;
    }
    
    .expert-detail {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 20px;
    }
    
    .expert-avatar {
        margin: 0 auto;
        width: 150px;
        height: 150px;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    .modal-content {
        margin: 10px;
        max-height: 95vh;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .expert-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    
    .expert-titles {
        align-self: stretch;
    }
    
    .search-box {
        margin: 0 16px;
    }
    
    .nav-filters {
        padding: 0 16px;
    }
}

/* 加载状态 */
.experts-grid.loading {
    opacity: 0.6;
    pointer-events: none;
}

.expert-card.hidden {
    display: none;
}

/* 搜索高亮 */
.highlight {
    background: rgba(42, 92, 145, 0.2);
    padding: 2px 4px;
    border-radius: 3px;
}

/* 无结果状态 */
.no-results {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-secondary);
}

.no-results svg {
    width: 64px;
    height: 64px;
    stroke: var(--text-light);
    margin-bottom: 20px;
}

.no-results h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.no-results p {
    font-size: 1rem;
    line-height: 1.6;
}