/* 注册页面内联样式 */
#alert-modal {
    display: none;
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: #ff4444;
    color: white;
    padding: 15px;
    border-radius: 5px;
    z-index: 1000;
}