/* ========== 成员页面专用样式 ========== */

/* ========== 页眉区域 ========== */
.page-header {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e8f5e9 100%);
    position: relative;
    overflow: hidden;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.header-text {
    max-width: 800px;
}

.header-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(46, 139, 87, 0.1);
    border-radius: 50px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary-green);
}

.badge-icon {
    font-size: 1.2rem;
}

.page-title {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--dark-text);
    line-height: 1.1;
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.2rem;
    line-height: 1.7;
    color: var(--dark-text);
    opacity: 0.9;
    margin-bottom: 3rem;
    max-width: 700px;
}

.team-stats {
    display: flex;
    gap: 3rem;
    margin-top: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-green);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--stone-gray);
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.decorative-element {
    position: absolute;
    border-radius: 50%;
    background: rgba(46, 139, 87, 0.1);
    z-index: 0;
}

.elem-1 {
    width: 300px;
    height: 300px;
    top: -150px;
    right: -150px;
    background: rgba(135, 206, 235, 0.1);
}

.elem-2 {
    width: 200px;
    height: 200px;
    bottom: 100px;
    right: 300px;
    background: rgba(139, 115, 85, 0.1);
}

.elem-3 {
    width: 150px;
    height: 150px;
    top: 200px;
    right: 500px;
    background: rgba(30, 144, 255, 0.1);
}

/* ========== 筛选区域 ========== */
.filter-section {
    padding: 3rem 0;
    background: white;
    border-bottom: 1px solid var(--border-color);
}

.filter-header {
    text-align: center;
    margin-bottom: 2rem;
}

.filter-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
    color: var(--dark-text);
    font-size: 1.5rem;
}

.filter-subtitle {
    color: var(--stone-gray);
    font-size: 1rem;
}

.filter-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    max-width: 800px;
    margin: 0 auto;
}

.filter-tag {
    padding: 0.75rem 1.5rem;
    background: rgba(46, 139, 87, 0.1);
    color: var(--primary-green);
    border: 2px solid transparent;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.filter-tag:hover {
    background: rgba(46, 139, 87, 0.2);
    transform: translateY(-2px);
}

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

/* ========== 成员区域 ========== */
.members-section {
    padding: 4rem 0;
    background: white;
}

.members-section:nth-child(even) {
    background: linear-gradient(135deg, #f8f9fa 0%, #f0f7f1 100%);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.role-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid rgba(46, 139, 87, 0.1);
}

.role-icon {
    width: 60px;
    height: 60px;
    background: rgba(46, 139, 87, 0.1);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-green);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.role-text {
    flex: 1;
}

.section-title {
    font-size: 2rem;
    color: var(--dark-text);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--stone-gray);
    font-size: 1rem;
}

/* ========== 成员网格 ========== */
.members-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

/* ========== 成员卡片 ========== */
.member-card {
    background: white;
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.member-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(46, 139, 87, 0.3);
}

.card-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(46, 139, 87, 0.1);
}

.member-badge {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.badge-role {
    padding: 0.25rem 0.75rem;
    background: rgba(46, 139, 87, 0.1);
    color: var(--primary-green);
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-year {
    padding: 0.25rem 0.75rem;
    background: rgba(30, 144, 255, 0.1);
    color: var(--ocean-blue);
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.member-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-text);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.member-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.member-tag {
    padding: 0.25rem 0.75rem;
    background: rgba(46, 139, 87, 0.05);
    color: var(--primary-green);
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(46, 139, 87, 0.2);
}

/* ========== 卡片主体 ========== */
.card-body {
    flex: 1;
    margin-bottom: 1.5rem;
}

.research-focus {
    margin-bottom: 1.5rem;
}

.focus-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    color: var(--dark-text);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.focus-title i {
    color: var(--primary-green);
    font-size: 0.9rem;
}

.focus-text {
    color: var(--dark-text);
    opacity: 0.9;
    line-height: 1.6;
    font-size: 0.95rem;
}

.member-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.detail-icon {
    width: 32px;
    height: 32px;
    background: rgba(46, 139, 87, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-green);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.detail-content {
    display: flex;
    flex-direction: column;
}

.detail-label {
    font-size: 0.8rem;
    color: var(--stone-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.detail-value {
    font-size: 0.9rem;
    color: var(--dark-text);
    font-weight: 500;
}

/* ========== 卡片页脚 ========== */
.card-footer {
    padding-top: 1.5rem;
    border-top: 1px solid rgba(46, 139, 87, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.contact-info {
    flex: 1;
    min-width: 200px;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-green);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.contact-link:hover {
    color: var(--deep-green);
}

.contact-link i {
    font-size: 0.85rem;
}

.social-links {
    display: flex;
    gap: 0.5rem;
}

.social-link {
    width: 32px;
    height: 32px;
    background: rgba(46, 139, 87, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-green);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-green);
    color: white;
    transform: translateY(-2px);
}

/* ========== 校友区域 ========== */
.alumni-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e8f5e9 100%);
}

.alumni-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.alumni-card {
    background: white;
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.alumni-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.alumni-content {
    text-align: center;
}

.alumni-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark-text);
    margin-bottom: 0.5rem;
}

.alumni-role {
    color: var(--stone-gray);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.alumni-current {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--primary-green);
    font-size: 0.9rem;
    font-weight: 500;
}

.alumni-current i {
    font-size: 0.85rem;
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .members-grid {
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 120px 0 60px;
    }

    .page-title {
        font-size: 2.5rem;
    }

    .page-subtitle {
        font-size: 1.1rem;
    }

    .team-stats {
        gap: 2rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .filter-tags {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 1rem;
        -webkit-overflow-scrolling: touch;
    }

    .members-grid {
        grid-template-columns: 1fr;
    }

    .member-card {
        padding: 1.5rem;
    }

    .card-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .social-links {
        align-self: flex-start;
    }

    .alumni-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 2rem;
    }

    .team-stats {
        flex-direction: column;
        gap: 1.5rem;
        align-items: flex-start;
    }

    .role-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .role-icon {
        width: 50px;
        height: 50px;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .member-name {
        font-size: 1.3rem;
    }

    .detail-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .detail-icon {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }
}

/* ========== 动画效果 ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.member-card {
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: calc(var(--card-index, 0) * 0.1s);
    opacity: 0;
}

/* 为卡片添加延迟动画 */
.members-grid .member-card:nth-child(1) { --card-index: 1; }
.members-grid .member-card:nth-child(2) { --card-index: 2; }
.members-grid .member-card:nth-child(3) { --card-index: 3; }
.members-grid .member-card:nth-child(4) { --card-index: 4; }
.members-grid .member-card:nth-child(5) { --card-index: 5; }
.members-grid .member-card:nth-child(6) { --card-index: 6; }