* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.top-nav {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    background-color: white;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.top-nav a {
    padding: 10px 20px;
    margin: 0 10px;
    text-decoration: none;
    color: #666;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.top-nav a.active {
    background-color: #3498db;
    color: white;
}

.top-nav a:hover:not(.active) {
    background-color: #f0f0f0;
}

h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

h2 {
    margin-bottom: 15px;
    color: #3498db;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.main-content.prediction-page {
    display: block;
}

.classes-container {
    grid-column: 1 / 3;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

#class-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.class-item {
    background-color: #f9f9f9;
    padding: 15px;
    border-radius: 5px;
    border: 1px solid #ddd;
}

.class-header {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.class-name-input {
    flex-grow: 1;
    padding: 5px;
    border: 1px solid transparent;
    background: none;
    font-size: 1.1em;
    font-weight: bold;
    color: #333;
}

.class-name-input:not([readonly]) {
    border-color: #3498db;
    background: white;
}

.edit-name-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    margin-left: 5px;
    font-size: 1.1em;
}

.delete-class-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    margin-left: 5px;
    font-size: 1.1em;
    color: #e74c3c;
}

.delete-class-btn:hover:not(:disabled) {
    color: #c0392b;
}

.delete-class-btn:disabled {
    color: #ccc;
    cursor: not-allowed;
}

.samples-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
    min-height: 100px;
}

.sample-img {
    width: 80px;
    height: 80px;
    position: relative;
}

.sample-img canvas {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
    border: 1px solid #ccc;
}

.sample-img .remove-btn {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: #e74c3c;
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    font-size: 12px;
    line-height: 20px;
    text-align: center;
    cursor: pointer;
    display: none;
    z-index: 1;
}

.sample-img:hover .remove-btn {
    display: block;
}

.upload-controls {
    margin-bottom: 10px;
}

.file-input {
    display: none;
}

.upload-btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    display: inline-block;
}

.upload-btn:hover {
    background-color: #2980b9;
}

#add-class-btn {
    background-color: #2ecc71;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
}

#add-class-btn:hover {
    background-color: #27ae60;
}

.model-container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.model-params {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 4px;
}

.param-group {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.param-group label {
    width: 100px;
    margin-right: 10px;
}

.param-group input {
    width: 100px;
    padding: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.preview-container {
    margin-bottom: 20px;
}

.upload-area {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 300px;
    border: 2px dashed #ccc;
    border-radius: 8px;
    position: relative;
    transition: all 0.3s ease;
}

.upload-area.drag-over {
    border-color: #3498db;
    background-color: rgba(52, 152, 219, 0.1);
}

.upload-placeholder {
    text-align: center;
    color: #777;
    cursor: pointer;
}

.upload-placeholder input[type="file"] {
    display: none;
}

#preview-image {
    max-width: 100%;
    max-height: 300px;
    display: block;
    margin: 0 auto;
}

.model-controls {
    margin-top: 20px;
}

#train-btn {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
    margin-bottom: 10px;
    width: 100%;
}

#train-btn:hover {
    background-color: #c0392b;
}

#train-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

#model-status {
    margin-bottom: 10px;
    font-style: italic;
}

.progress-container {
    width: 100%;
    height: 10px;
    background-color: #eee;
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 15px;
}

.progress-bar {
    height: 100%;
    background-color: #3498db;
    width: 0%;
    transition: width 0.3s ease;
}

.training-metrics {
    display: flex;
    justify-content: space-around;
    padding: 10px;
    background-color: #f9f9f9;
    border-radius: 4px;
    margin-top: 15px;
}

.metric {
    text-align: center;
}

.metric span:first-child {
    color: #666;
    margin-right: 5px;
}

.prediction-container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.results-container {
    margin-top: 20px;
}

#prediction-results {
    margin-top: 15px;
}

.prediction-bar {
    height: 40px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.prediction-label {
    width: 150px;
    font-weight: bold;
    padding-right: 10px;
}

.prediction-value-container {
    flex-grow: 1;
    height: 20px;
    background-color: #eee;
    border-radius: 10px;
    overflow: hidden;
    margin: 0 10px;
}

.prediction-value {
    height: 100%;
    background-color: #3498db;
    width: 0%;
    transition: width 0.3s ease;
}

.prediction-percentage {
    min-width: 60px;
    text-align: right;
}

.no-model-message {
    text-align: center;
    padding: 20px;
    color: #666;
    font-style: italic;
}

.error-message {
    color: #e74c3c;
    text-align: center;
    padding: 20px;
}

.model-info {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid #3498db;
}

.model-info p {
    margin-bottom: 10px;
    color: #2c3e50;
    font-size: 0.95em;
}

.model-info ul {
    list-style-type: none;
    padding-left: 20px;
}

.model-info ul li {
    margin-bottom: 5px;
    color: #34495e;
    position: relative;
}

.model-info ul li:before {
    content: "✓";
    color: #2ecc71;
    position: absolute;
    left: -20px;
}

.tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    background-color: white;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.tab-btn {
    padding: 10px 20px;
    margin: 0 10px;
    border: none;
    background-color: transparent;
    color: #666;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background-color: #3498db;
    color: white;
}

.tab-btn:hover:not(.active) {
    background-color: #f0f0f0;
}

.tab-content {
    position: relative;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* MobileNet状态面板 */
#model-status-panel {
    background-color: #f0f8ff;
    border: 1px solid #ccc;
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 15px;
    font-size: 14px;
}

#mobilenet-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#mobilenet-status span {
    font-weight: bold;
    color: #2196F3;
}

#mobilenet-status span.success {
    color: #4CAF50;
}

#mobilenet-status span.error {
    color: #F44336;
}

/* 图像上传按钮 */
.upload-button-container {
    margin-top: 15px;
    text-align: center;
}

.upload-button {
    background-color: #2196F3;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.upload-button:hover {
    background-color: #0b7dda;
}

.preview-text {
    font-size: 16px;
    color: #666;
    text-align: center;
    margin-bottom: 10px;
}

/* 管理员控制 */
.admin-controls {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px dashed #ccc;
}

.admin-btn {
    background-color: #3f51b5;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.admin-btn:hover {
    background-color: #303f9f;
}

.admin-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}