body {
    position: relative;
    height: 100vh; /* 确保 body 高度为视口高度 */
    margin: 0; /* 重置浏览器默认边距 */
    overflow: hidden; /* 防止内容溢出 */
}

body::before {
    content: ""; /* 必须有内容,否则伪元素不会渲染 */
    position: absolute; /* 使用绝对定位,从而可以覆盖整个 body 区域 */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /*background-image: url('https://img14.360buyimg.com/ddimg/jfs/t1/237750/7/18548/26978/66586eaaF58bc4591/3e1c6136af6d5e87.jpg');*/
    /*background-size: cover; !* 保证图片覆盖整个区域 *!*/
    z-index: -1; /* 确保伪元素在 body 内容之后渲染 */

    background: linear-gradient(220.55deg, #001C63 0%, #24CFC5 100%);
}

.user-login-main {
    position: absolute;
    top: 25%;
    left: 50%;
    transform: translateX(-50%);
    box-sizing: border-box;
    width: 375px;
}

@media screen and (max-width: 767px) {
    .user-login-main {
        top: 20%;
    }
}

.user-login-header {
    padding: 20px;
    text-align: center;
}

.user-login-header h2 {
    margin-bottom: 10px;
    font-weight: 300;
    font-size: 30px;
    color: #0c0f13;
}

.user-login-header h4 {
    font-size: 18px;
    font-weight: 300;
    color: #8c8c8c;
}

.demo-login-container {
    width: 320px;
    margin: 20px auto 20px;
}

.demo-login-other .layui-icon {
    position: relative;
    display: inline-block;
    margin: 0 2px;
    top: 2px;
    font-size: 26px;
}

.layui-col-xs5 div img {
    max-height: 38px;
    width: 100%;
    cursor: pointer;
    box-sizing: border-box
}


.user-login-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    line-height: 30px;
    padding: 20px;
    text-align: center;
    box-sizing: border-box;
    color: rgba(0, 0, 0, .5);
}

.user-login-footer a {
    padding: 0 5px;
    color: rgba(0, 0, 0, .5);
}

.show-rule {
    flex: 1;
    padding-top: 8px;
    margin-left: -10px;
    text-decoration: underline;
    color: #01aaed;
}

.login-link {
    flex: 2;
    padding-top: 8px;
    padding-right: 5px;
    text-align: right;
    color: #16baaa;
}

.marquee-container {
    padding-top: 10px;
}

@media screen and (min-width: 992px) {
    .marquee-container {
        margin: 0 auto;
        width: 960px !important;
    }
}