.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}



.gallery-controls {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.search-box {
    display: flex;
    flex: 1;
    max-width: 400px;
    min-width: 250px;
}

.search-box input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid var(--gray-light);
    border-radius: 5px 0 0 5px;
    font-size: 16px;
    transition: var(--transition);
}

.search-box input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.search-box button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0 20px;
    border-radius: 0 5px 5px 0;
    cursor: pointer;
    transition: var(--transition);
}

.search-box button:hover {
    background: #5d4de0;
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sort-options label {
    font-weight: 500;
}

.sort-options select {
    padding: 10px 15px;
    border: 1px solid var(--gray-light);
    border-radius: 5px;
    background: white;
    font-size: 16px;
    cursor: pointer;
}

.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.photo-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    cursor: pointer;
}

.photo-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.12);
}

.photo-img {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.photo-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.photo-details {
    padding: 20px;
}

.photo-title {
    font-size: 1.3rem;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-color);
}

.photo-desc {
    color: #666;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.photo-meta {
    display: flex;
    justify-content: space-between;
    color: #777;
    font-size: 0.9rem;
}

.photo-category {
    background: var(--secondary-color);
    color: white;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

footer {
    background: var(--dark-color);
    color: white;
    padding: 30px 0;
    text-align: center;
    margin-top: 50px;
}

footer p {
    margin-bottom: 15px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.social-links a {
    color: white;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--secondary-color);
}

.loading {
    text-align: center;
    padding: 40px;
    grid-column: 1 / -1;
    color: #777;
    font-size: 1.1rem;
}

/* 图片模态框 */
.image-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.9);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.image-modal .modal-content {
    max-width: 90%;
    max-height: 90%;
    display: block;
}

.image-modal #imageCaption {
    position: absolute;
    bottom: 20px;
    left: 0;
    width: 100%;
    text-align: center;
    color: white;
    font-size: 1.2rem;
    padding: 10px;
    background: rgba(0,0,0,0.7);
}

.image-modal .close-btn {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    cursor: pointer;
    z-index: 1001;
    transition: color 0.3s;
}

.image-modal .close-btn:hover {
    color: #bbb;
}

/* 响应式设计 */
@media (max-width: 768px) {
    nav ul {
        justify-content: flex-start;
        overflow-x: auto;
        white-space: nowrap;
        padding: 10px 0;
    }
    
    .gallery-controls {
        flex-direction: column;
    }
    
    .search-box {
        max-width: 100%;
    }
    
    .photo-gallery {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
    
    header h1 {
        font-size: 2.2rem;
    }
}

@media (max-width: 480px) {
    .photo-gallery {
        grid-template-columns: 1fr;
    }
    
    nav ul li a {
        padding: 12px 15px;
        font-size: 0.9rem;
    }
    
    .image-modal .close-btn {
        top: 10px;
        right: 15px;
        font-size: 30px;
    }
}