* {
    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: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 30px;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-size: 28px;
}

.template-section {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 25px;
}

.template-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.template-header h2 {
    font-size: 20px;
    color: #333;
}

.btn {
    padding: 8px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

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

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-warning {
    background: #ffc107;
    color: #333;
}

.btn-warning:hover {
    background: #e0a800;
}

.template-selector {
    margin-bottom: 15px;
}

.template-selector select {
    width: 100%;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.template-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.template-item {
    background: white;
    padding: 15px;
    border-radius: 8px;
    border: 2px solid #e0e0e0;
    position: relative;
}

.template-item.active {
    border-color: #667eea;
    background: #f0f4ff;
}

.template-item h3 {
    font-size: 16px;
    margin-bottom: 10px;
    color: #333;
}

.template-item .template-preview {
    font-size: 12px;
    color: #666;
    margin-bottom: 10px;
    word-break: break-all;
}

.template-item .template-actions {
    display: flex;
    gap: 10px;
}

.template-form {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-top: 15px;
    border: 2px dashed #667eea;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #333;
}

.form-group input {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.form-group textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    min-height: 80px;
    resize: vertical;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 25px;
}

.input-section, .output-section {
    display: flex;
    flex-direction: column;
}

.input-section label, .output-section label {
    font-weight: bold;
    margin-bottom: 10px;
    color: #333;
    font-size: 16px;
}

.input-section textarea, .output-section textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    font-family: 'Consolas', 'Monaco', monospace;
    resize: vertical;
    min-height: 400px;
}

.input-section textarea:focus, .output-section textarea:focus {
    outline: none;
    border-color: #667eea;
}

.action-buttons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    justify-content: center;
}

.action-buttons .btn {
    padding: 12px 30px;
    font-size: 16px;
}

.stats {
    text-align: center;
    margin-top: 15px;
    color: #666;
    font-size: 14px;
}

.hidden {
    display: none;
}