/* 博客样式 */
.blog-section {
    background: #f8f9fa;
}

.section-description {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
}

.blog-categories {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.category-btn {
    padding: 0.5rem 1.5rem;
    border: 2px solid #667eea;
    background: transparent;
    color: #667eea;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.category-btn.active,
.category-btn:hover {
    background: #667eea;
    color: white;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.blog-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

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

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

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

.blog-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: rgba(102, 126, 234, 0.9);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.blog-content {
    padding: 1.5rem;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #666;
}

.blog-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
    line-height: 1.4;
}

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

.blog-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.tag {
    background: #f0f0f0;
    color: #666;
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    font-size: 0.8rem;
}

.read-more-btn {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.read-more-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.load-more-section {
    text-align: center;
}

.load-more-btn {
    background: linear-gradient(45deg, #ff6b6b, #ff8e53);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 1rem;
}

.load-more-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 107, 107, 0.3);
}

.load-more-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* 博客模态框 */
.blog-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.blog-modal.show {
    display: flex;
}

.blog-modal-content {
    background: white;
    border-radius: 20px;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.blog-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid #eee;
}

.blog-modal-header h2 {
    color: #333;
    font-size: 1.8rem;
    margin: 0;
}

.blog-modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #666;
    transition: color 0.3s ease;
}

.blog-modal-close:hover {
    color: #333;
}

.blog-modal-body {
    padding: 2rem;
}

.modal-blog-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 15px;
    margin-bottom: 1.5rem;
}

.modal-blog-meta {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    color: #666;
    font-size: 0.9rem;
}

.modal-blog-content {
    line-height: 1.8;
    color: #333;
}

.modal-blog-content h3 {
    color: #667eea;
    margin: 1.5rem 0 1rem;
}

.modal-blog-content ul {
    margin: 1rem 0;
    padding-left: 2rem;
}

.modal-blog-content li {
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .blog-categories {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 1rem;
    }

    .category-btn {
        white-space: nowrap;
    }

    .blog-modal-content {
        margin: 1rem;
        max-height: 95vh;
    }

    .blog-modal-header {
        padding: 1.5rem 1.5rem 1rem;
    }

    .blog-modal-body {
        padding: 1.5rem;
    }
}