body {
    background-color: #f0f2f5;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.card {
    border: none;
    border-radius: 12px;
}

.card-header {
    border-radius: 12px 12px 0 0 !important;
}

textarea {
    resize: none;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
}

.bg-light-success {
    background-color: #eaffea !important;
}

.bg-light-danger {
    background-color: #ffeaea !important;
}

.progress-bar {
    transition: width 0.3s ease;
}

/* 移动端优化 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
}