/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    margin-top: 20px;
}

h1 {
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
}

h2 {
    color: #34495e;
    margin: 20px 0 15px;
    font-size: 1.5em;
    border-bottom: 2px solid #3498db;
    padding-bottom: 5px;
}

p {
    margin-bottom: 20px;
    color: #666;
    text-align: center;
}

/* 章节样式 */
.section {
    margin-bottom: 30px;
    padding: 20px;
    background-color: #fafafa;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

/* 上传区域样式 */
.upload-area {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: flex-start;
}

input[type="file"] {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #fff;
}

button {
    padding: 10px 20px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #2980b9;
}

button:active {
    transform: translateY(1px);
}

/* 图片预览样式 */
#imagePreview {
    margin-top: 10px;
    max-width: 300px;
    max-height: 200px;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
    display: none;
}

#imagePreview img {
    width: 100%;
    height: auto;
    display: block;
}

/* 搜索栏样式 */
.search-bar {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.search-bar input[type="text"] {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    flex: 1;
    min-width: 200px;
}

.search-bar label {
    margin-left: 10px;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    color: #666;
}

/* 图片列表样式 */
#imageList {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.image-item {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.image-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.image-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 10px;
}

.image-item-info {
    font-size: 12px;
    color: #666;
    margin-bottom: 10px;
}

.image-item-actions {
    display: flex;
    gap: 5px;
    justify-content: space-between;
}

.image-item-actions button {
    padding: 5px 10px;
    font-size: 12px;
    flex: 1;
}

.image-item-actions button:nth-child(1) {
    background-color: #27ae60;
}

.image-item-actions button:nth-child(1):hover {
    background-color: #229954;
}

.image-item-actions button:nth-child(2) {
    background-color: #f39c12;
}

.image-item-actions button:nth-child(2):hover {
    background-color: #e67e22;
}

.image-item-actions button:nth-child(3) {
    background-color: #e74c3c;
}

.image-item-actions button:nth-child(3):hover {
    background-color: #c0392b;
}

/* 图片详情样式 */
#imageDetail {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 15px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
}

.detail-image {
    max-width: 400px;
    max-height: 300px;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 15px;
}

.detail-image img {
    width: 100%;
    height: auto;
    display: block;
}

.detail-info {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 10px;
    align-items: center;
}

.detail-info strong {
    color: #333;
    font-weight: bold;
}

/* 编辑表单样式 */
#editForm {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 15px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-group label {
    font-weight: bold;
    color: #333;
}

.form-group input, .form-group textarea {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group textarea {
    height: 100px;
    resize: vertical;
}

.edit-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.edit-actions button {
    flex: 1;
}

.edit-actions button:nth-child(2) {
    background-color: #e74c3c;
}

.edit-actions button:nth-child(2):hover {
    background-color: #c0392b;
}

/* 消息提示样式 */
.message {
    padding: 10px 15px;
    margin: 10px 0;
    border-radius: 4px;
    font-size: 14px;
    font-weight: bold;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.message.info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* 加载动画样式 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: #3498db;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        margin: 10px;
        padding: 15px;
    }
    
    .search-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-bar input[type="text"] {
        min-width: auto;
    }
    
    #imageList {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .detail-info {
        grid-template-columns: 1fr;
    }
    
    .upload-area {
        align-items: stretch;
    }
}