.base64-result {
        background-color: var(--card-bg);
        color: var(--body-color);
        border: 1px solid var(--card-border);
        border-radius: 0.375rem;
        padding: 1rem;
        font-family: 'Courier New', monospace;
        font-size: 14px;
        word-break: break-all;
        min-height: 60px;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    
    .base64-result.success {
        border-color: var(--success-color);
        background-color: color-mix(in srgb, var(--success-color) 10%, transparent);
    }
    
    .base64-result.error {
        border-color: var(--danger-color);
        background-color: color-mix(in srgb, var(--danger-color) 10%, transparent);
    }
    
    .base64-content {
        font-weight: bold;
        font-size: 1rem;
        color: var(--primary-color);
        max-height: 200px;
        overflow-y: auto;
        flex: 1;
        margin-right: 1rem;
    }
    
    .file-upload-area {
        border: 2px dashed var(--card-border);
        border-radius: 0.5rem;
        padding: 2rem;
        text-align: center;
        cursor: pointer;
        transition: all 0.3s ease;
        background-color: var(--card-bg);
    }
    
    .file-upload-area:hover {
        border-color: var(--primary-color);
        background-color: color-mix(in srgb, var(--primary-color) 5%, transparent);
    }
    
    /* 新布局样式 */
    .card.border-primary {
        border-width: 2px;
    }
    
    .card.border-success {
        border-width: 2px;
    }
    
    .card-header.bg-primary,
    .card-header.bg-success {
        border-radius: 0.375rem 0.375rem 0 0 !important;
    }
    
    /* 结果区域高度调整 */
    .base64-result {
        min-height: 120px;
        flex-direction: column;
        align-items: stretch;
    }
    
    .base64-content {
        max-height: 150px;
        margin-right: 0;
        margin-bottom: 0.75rem;
        flex: 1;
        overflow-y: auto;
        padding: 0.5rem;
        background-color: color-mix(in srgb, var(--card-bg) 95%, var(--body-color));
        border-radius: 0.25rem;
    }
    
    /* 按钮样式优化 */
    .btn.w-100 {
        padding: 0.75rem;
        font-weight: 600;
    }
    
    /* 响应式调整 */
    @media (max-width: 767.98px) {
        .base64-result {
            min-height: 100px;
        }
        
        .base64-content {
            max-height: 120px;
        }
        
        .card {
            margin-bottom: 1.5rem;
        }
    }
    
    /* 输入区域优化 */
    .json-editor {
        resize: vertical;
        min-height: 150px;
        max-height: 300px;
    }
    
    /* 信息提示 */
    .text-muted small {
        font-size: 0.85rem;
        line-height: 1.4;
    }
    
    .batch-item {
        border-bottom: 1px solid var(--card-border);
        padding: 0.75rem 0;
    }
    
    .batch-item:last-child {
        border-bottom: none;
    }
    
    .batch-original {
        color: var(--body-color);
        margin-bottom: 0.25rem;
        word-break: break-word;
        font-size: 0.9rem;
    }
    
    .batch-result {
        color: var(--primary-color);
        font-family: 'Courier New', monospace;
        font-size: 0.85rem;
        word-break: break-all;
    }
    
    .example-card {
        cursor: pointer;
        transition: all 0.2s ease;
        border: 1px solid var(--card-border);
    }
    
    .example-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        border-color: var(--primary-color);
    }
    
    .example-preview {
        font-family: 'Courier New', monospace;
        font-size: 0.85rem;
        color: var(--secondary-color);
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .nav-tabs .nav-link {
        color: var(--body-color);
        border: none;
        padding: 0.75rem 1.5rem;
    }
    
    .nav-tabs .nav-link.active {
        color: var(--primary-color);
        border-bottom: 2px solid var(--primary-color);
        background-color: transparent;
    }
    
    .nav-tabs .nav-link:hover:not(.active) {
        color: var(--primary-color);
        border-bottom: 2px solid var(--card-border);
    }