/* 项目分类样式 */
.project-categories {
    padding: 6rem 2rem 2rem;
    background-color: #f8f9fa;
}

.category-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.category-btn {
    padding: 0.8rem 1.5rem;
    border: 2px solid #3498db;
    border-radius: 25px;
    background: transparent;
    color: #3498db;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-btn:hover,
.category-btn.active {
    background: #3498db;
    color: #fff;
}

/* 项目列表样式 */
.projects-list {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-item {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.project-item:hover {
    transform: translateY(-5px);
}

.project-image {
    height: 300px;
    overflow: hidden;
}

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

.project-item:hover .project-image img {
    transform: scale(1.1);
}

.project-details {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.project-details h3 {
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-description {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.project-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.project-category,
.project-stage {
    background: #f8f9fa;
    padding: 0.5rem 1rem;
    border-radius: 15px;
    font-size: 0.9rem;
    color: #666;
}

.view-details-btn {
    align-self: flex-start;
    padding: 0.8rem 1.5rem;
    background: #3498db;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.view-details-btn:hover {
    background: #2980b9;
}

/* 响应式布局 */
@media (max-width: 768px) {
    .project-item {
        grid-template-columns: 1fr;
    }

    .project-image {
        height: 200px;
    }

    .project-details {
        padding: 1.5rem;
    }
}