.password-container {
    position: relative;
    max-width: 300px;
    margin: 20px auto;
}

#passwordInput {
    width: 100%;
    padding: 10px 35px 10px 10px; /* 右侧留空间给按钮 */
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

#toggleBtn {
    position: absolute;
    right: 5px; /* 按钮在输入框右侧 */
    top: 50%;
    transform: translateY(-50%); /* 垂直居中 */
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    padding: 2px 5px;
    font-size: 14px;
}

    #toggleBtn:hover {
        color: #2c3e50; /* 悬停时颜色加深 */
    }