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

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 30px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.admin-info {
    font-size: 14px;
    font-weight: 500;
}

.logout-btn {
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.logout-btn:active {
    transform: translateY(0);
}

header h1 {
    font-size: 28px;
    font-weight: bold;
}

.server-status {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #4CAF50;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.status-text {
    font-weight: 500;
}

#serverStatus {
    font-weight: bold;
    color: #4CAF50;
}

.tabs {
    display: flex;
    background: #f5f5f5;
    border-bottom: 2px solid #e0e0e0;
}

.tab {
    padding: 15px 25px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #666;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.tab:hover {
    background: #e8e8e8;
}

.tab.active {
    color: #667eea;
    border-bottom-color: #667eea;
    background: white;
}

main {
    padding: 30px;
}

.tab-content {
    display: none;
}

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 25px;
    border-radius: 10px;
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.stat-card h3 {
    font-size: 16px;
    margin-bottom: 10px;
    opacity: 0.9;
}

.stat-number {
    font-size: 36px;
    font-weight: bold;
}

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

.table-container h2 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #333;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.data-table thead {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.data-table th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
}

.data-table tbody tr {
    border-bottom: 1px solid #e0e0e0;
}

.data-table tbody tr:hover {
    background: #f5f5f5;
}

.data-table td {
    padding: 12px 15px;
    font-size: 14px;
    color: #333;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #999;
    font-style: italic;
}

.add-service-form {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.add-service-form h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
}

.add-course-form {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.add-course-form h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
}

#addServiceForm {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

#addServiceForm input,
#addServiceForm select,
#addServiceForm textarea {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

#addServiceForm textarea {
    min-height: 80px;
    resize: vertical;
}

#addServiceForm button {
    padding: 12px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.2s;
}

#addServiceForm button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(102, 126, 234, 0.3);
}

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

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.form-group textarea {
    min-height: 80px;
    resize: vertical;
}

.edit-btn {
    padding: 6px 12px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: background 0.3s;
    margin-right: 5px;
}

.edit-btn:hover {
    background: #5568d3;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow-y: auto;
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 30px;
    border-radius: 10px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e0e0e0;
}

.modal-header h2 {
    font-size: 22px;
    color: #333;
}

.close-btn {
    background: none;
    border: none;
    font-size: 28px;
    color: #999;
    cursor: pointer;
    transition: color 0.3s;
}

.close-btn:hover {
    color: #333;
}

#editServiceForm {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 10px;
}

.form-actions button {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.2s;
}

.cancel-btn {
    background: #e0e0e0;
    color: #666;
}

.cancel-btn:hover {
    background: #d0d0d0;
}

.refund-btn {
    padding: 6px 12px;
    background: #ffa726;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: background 0.3s;
}

.refund-btn:hover {
    background: #ff9800;
}

.save-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.save-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(102, 126, 234, 0.3);
}

.delete-btn {
    padding: 6px 12px;
    background: #ff4757;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: background 0.3s;
}

.delete-btn:hover {
    background: #ff3838;
}

.view-btn {
    padding: 6px 12px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: background 0.3s;
}

.view-btn:hover {
    background: #5568d3;
}

.content-preview {
    max-width: 300px;
    max-height: 100px;
    overflow-y: auto;
    word-wrap: break-word;
    white-space: pre-wrap;
    line-height: 1.5;
}

.empty-message {
    text-align: center;
    padding: 40px;
    color: #999;
    font-style: italic;
}

.add-forbidden-word-form {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.add-forbidden-word-form h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
}

.form-row {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.form-row input,
.form-row textarea {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

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

.form-row button {
    padding: 10px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.2s;
    white-space: nowrap;
}

.form-row button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(102, 126, 234, 0.3);
}

.test-moderation {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.test-moderation h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
}

#testResult {
    margin-top: 15px;
    padding: 15px;
    border-radius: 5px;
    font-size: 14px;
}

#testResult.passed {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

#testResult.failed {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.forbidden-words-list {
    margin-top: 20px;
}

.forbidden-words-list h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
}

.words-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
}

.word-tag {
    background: #fff3cd;
    color: #856404;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 13px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid #ffeeba;
}

.word-tag .word-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.word-tag .delete-word-btn {
    margin-left: 8px;
    background: #dc3545;
    color: white;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.word-tag .delete-word-btn:hover {
    background: #c82333;
}

@media (max-width: 768px) {
    .container {
        border-radius: 0;
    }

    header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .tabs {
        flex-wrap: wrap;
    }

    .tab {
        flex: 1;
        min-width: 120px;
        text-align: center;
    }

    .data-table {
        font-size: 12px;
    }

    .data-table th,
    .data-table td {
        padding: 8px 10px;
    }
}

.config-container {
    padding: 20px;
}

.config-section {
    background: #f9f9f9;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.config-section h3 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 18px;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #333;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: normal;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.status-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: bold;
}

.status-badge.success {
    background: #4CAF50;
    color: white;
}

.status-badge.warning {
    background: #ff9800;
    color: white;
}

.status-badge.error {
    background: #f44336;
    color: white;
}

.info-box {
    background-color: #f0f0f0;
    border-left: 4px solid #667eea;
    padding: 15px;
    border-radius: 8px;
    margin-top: 10px;
}

.info-box p {
    margin: 10px 0;
    font-size: 14px;
    color: #333;
    line-height: 1.6;
}

.info-box strong {
    color: #667eea;
}

.save-btn,
.test-btn {
    padding: 12px 30px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    margin-right: 10px;
}

.save-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.save-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.test-btn {
    background: #4CAF50;
    color: white;
}

.test-btn:hover {
    background: #45a049;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.4);
}

/* 日记详情弹窗样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: 0;
    border-radius: 10px;
    width: 80%;
    max-width: 600px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
}

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

.modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 20px;
}

.close-btn {
    color: white;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}

.close-btn:hover {
    color: #ff6b6b;
}

.modal-body {
    padding: 20px;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-field {
    margin-bottom: 20px;
}

.modal-field label {
    display: block;
    font-weight: bold;
    color: #667eea;
    margin-bottom: 8px;
    font-size: 14px;
}

.modal-field p {
    margin: 0;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 6px;
    color: #333;
    line-height: 1.6;
}

.modal-content-text {
    padding: 15px;
    background: #f8f9fa;
    border-radius: 6px;
    color: #333;
    line-height: 1.8;
    white-space: pre-wrap;
    word-wrap: break-word;
    max-height: 300px;
    overflow-y: auto;
    font-size: 14px;
}

.modal-images {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.modal-image {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid #e0e0e0;
}

.modal-image:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.modal-image-placeholder,
.modal-image-error {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    background: #f5f5f5;
    border: 2px dashed #ccc;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 10px;
}

.placeholder-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.placeholder-text {
    font-size: 12px;
    color: #666;
    margin-bottom: 4px;
}

.placeholder-url {
    font-size: 10px;
    color: #999;
    word-break: break-all;
    max-width: 100%;
}