/* 作品展示页面样式 */
.portfolio-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* 头部横幅 */
.hero {
    position: relative;
    height: 400px;
    margin-bottom: 3rem;
    overflow: hidden;
    border-radius: 8px;
}

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

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* 分类导航 */
.category-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.category-btn {
    padding: 0.8rem 1.5rem;
    border: none;
    background: #f5f5f5;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-btn.active {
    background: #1e88e5;
    color: #fff;
}

/* 作品网格 */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.portfolio-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    cursor: pointer;
}

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

.portfolio-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

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

.portfolio-card:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(30,136,229,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.view-project {
    color: #fff;
    font-size: 1.2rem;
    border: 2px solid #fff;
    padding: 0.5rem 1.5rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.view-project:hover {
    background: #fff;
    color: #1e88e5;
}

.portfolio-info {
    padding: 1.5rem;
}

.portfolio-info h3 {
    margin-bottom: 0.5rem;
    color: #333;
}

.portfolio-description {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.portfolio-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    background: #f5f5f5;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #666;
}

/* 项目详情弹窗 */
.project-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.project-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: #fff;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: 8px;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.project-modal.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #eee;
    position: relative;
}

.modal-header h2 {
    margin: 0;
    color: #333;
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #666;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-modal:hover {
    color: #1e88e5;
}

.modal-body {
    padding: 1.5rem;
}

.project-gallery {
    margin-bottom: 2rem;
}

.gallery-main {
    margin-bottom: 1rem;
    border-radius: 4px;
    overflow: hidden;
}

.gallery-main img {
    width: 100%;
    height: auto;
}

.gallery-thumbs {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.gallery-thumb {
    width: 100px;
    height: 60px;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.gallery-thumb.active {
    opacity: 1;
}

.gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-details h3 {
    color: #333;
    margin-bottom: 1rem;
}

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

.project-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: #1e88e5;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.project-link:hover {
    background: #1565c0;
}

.project-link i {
    font-size: 1.2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .portfolio-container {
        padding: 1rem;
    }

    .category-nav {
        flex-wrap: wrap;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .modal-content {
        width: 95%;
    }

    .gallery-thumbs {
        display: none;
    }
}