/* 实验室页面样式 */
.laboratory-header {
    background: linear-gradient(rgba(44, 82, 130, 0.9), rgba(44, 82, 130, 0.7)),
                url('https://images.unsplash.com/photo-1581093458791-9f3c3250a8b0?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwxfDB8MXxyYW5kb218MHx8bGFifHx8fHx8MTcwOTcxODcyMA&ixlib=rb-4.0.3&q=80&w=1280');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 100px 0 60px;
    text-align: center;
}

.laboratory-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.laboratory-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 实验室简介 */
.laboratory-intro {
    padding: 60px 0;
    background-color: white;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.intro-text h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 20px;
}

.intro-text p {
    color: var(--secondary-color);
    line-height: 1.8;
    margin-bottom: 30px;
}

.intro-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    color: var(--secondary-color);
    font-size: 1.1rem;
}

.intro-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.intro-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

/* 研究方向 */
.research-areas {
    padding: 60px 0;
    background-color: var(--background-color);
}

.research-areas h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 40px;
}

.areas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.area-card {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.area-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.area-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.area-card h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.area-card p {
    color: var(--secondary-color);
}

/* 科研设备 */
.equipment {
    padding: 60px 0;
    background-color: white;
}

.equipment h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 40px;
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.equipment-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.equipment-card:hover {
    transform: translateY(-5px);
}

.equipment-image {
    height: 200px;
    overflow: hidden;
}

.equipment-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.equipment-info {
    padding: 20px;
}

.equipment-info h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.equipment-info p {
    color: var(--secondary-color);
}

/* 研究成果 */
.achievements {
    padding: 60px 0;
    background-color: var(--background-color);
}

.achievements h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 40px;
}

.achievements-tabs {
    display: flex;
    justify-content: center;
    gap: 2px;
    margin-bottom: 30px;
    background-color: #f1f5f9;
    padding: 2px;
    border-radius: 8px;
}

.tab-btn {
    padding: 12px 24px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 1rem;
    color: var(--secondary-color);
    transition: all 0.3s ease;
    border-radius: 6px;
}

.tab-btn.active {
    background-color: white;
    color: var(--primary-color);
    font-weight: 500;
}

.tab-content {
    display: none;
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tab-content.active {
    display: block;
}

.paper-item,
.patent-item,
.award-item {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.paper-item:last-child,
.patent-item:last-child,
.award-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.paper-item h3,
.patent-item h3,
.award-item h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.paper-authors,
.paper-journal,
.patent-number,
.patent-date,
.award-project,
.award-date {
    color: var(--secondary-color);
    margin-bottom: 5px;
}

/* 联系我们 */
.contact {
    padding: 60px 0;
    background-color: white;
}

.contact h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 40px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info {
    display: grid;
    gap: 30px;
}

.info-item h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.info-item p {
    color: var(--secondary-color);
}

.contact-map {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.map-placeholder {
    width: 100%;
    height: 100%;
    min-height: 300px;
    background-color: #f1f5f9;
}

.map-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .intro-content {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .achievements-tabs {
        flex-wrap: wrap;
    }

    .tab-btn {
        flex: 1 1 calc(50% - 2px);
    }
}