/* 自定义样式补充 */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

#sendCodeBtn:disabled {
    background-color: #9ca3af;
    cursor: not-allowed;
}

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 24px;
    background-color: #4f46e5;
    color: white;
    border-radius: 4px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.toast.show {
    opacity: 1;
}