:root {
    --primary-color: #FF4081;
    --background-color: #f5f6fa;
    --text-primary: #333333;
    --spacing-unit: 8px;
    --radius-medium: 5px;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.input-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.code-input textarea {
    width: 100%;
    height: 150px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: var(--radius-medium);
    margin: 10px 0;
}

.settings {
    display: grid;
    gap: 15px;
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.setting-item label {
    min-width: 100px;
}

.setting-item input[type="number"],
.setting-item select {
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: var(--radius-medium);
    width: 150px;
}

.action-buttons {
    display: flex;
    gap: 10px;
    margin: 20px 0;
}

button {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-medium);
    cursor: pointer;
    transition: all 0.3s ease;
}

button.primary {
    background: var(--primary-color);
    color: white;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.preview-area {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    padding: 20px;
    background: #fafafa;
    border-radius: var(--radius-medium);
}

.barcode-item {
    background: white;
    padding: 15px;
    border-radius: var(--radius-medium);
    text-align: center;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.barcode-item canvas {
    max-width: 100%;
    height: auto;
}

.dialog-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.dialog-overlay.active {
    display: flex;
}

.dialog-content {
    background: white;
    border-radius: var(--radius-medium);
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow);
}

.dialog-header {
    padding: 15px 20px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dialog-header h3 {
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
}

.dialog-body {
    padding: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: var(--radius-medium);
}

.preview-text {
    margin-top: 20px;
    padding: 10px;
    background: #f5f5f5;
    border-radius: var(--radius-medium);
}

.dialog-footer {
    padding: 15px 20px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.dialog-footer button {
    min-width: 80px;
}

.confirm-btn {
    background: var(--primary-color);
    color: white;
}

.version {
    font-size: 16px;
    color: #666;
    font-weight: normal;
    margin-left: 10px;
}

.footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    text-align: center;
    color: #666;
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}