/* 转换卡片 */
.converter-card {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.converter-label {
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.converter-label .converter-input {
    width: 100%;
    padding: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    transition: all 0.3s ease;
}

.converter-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.converter-input:read-only {
    background: #f7fafc;
    cursor: not-allowed;
}

.converter-actions {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.converter-actions .btn {
    flex: 1;
}

/* 快速转换按钮 */
.quick-convert {
    background: #fff;
    border-radius: 12px;
    padding: 20px 25px;
    margin-bottom: 25px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.quick-convert-title {
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 15px;
}

.quick-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
}

/* 响应式 */
@media (max-width: 768px) {
    .converter-actions {
        flex-direction: column;
    }
}