html {
    user-select: none;
}

a,
a:link,
a:visited,
a:hover,
a:active,
a:focus,
i,
#name {
    text-decoration: none;
    color: #0F52BA;
}

.title {
    margin: .888rem 0;
    font-family: 'Arial Black', sans-serif;
    /* 选择一个酷炫的字体 */
    font-size: 48px;
    /* 设置字体大小 */
    color: #0F52BA;
    /* 设置字体颜色 */
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    /* 添加文本阴影 */
}

.item-box {
    text-align: center;
}

.li-item {
    list-style: none;
    padding: .618rem;
    text-align: left;
    display: inline-block;
    height: 7.68rem;
    width: 96.66%;
    vertical-align: top;
    background-color: #f5f6f7;
    margin: .333rem .2rem;
    border-radius: .5rem;
    box-shadow: 1px 2px 4px rgba(0, 0, 0, 0.5);
}

@media screen and (min-width: 600px) {
    .li-item {
        max-width: 13.33rem;
    }
}

.text-ellipsis {
    margin-bottom: .333rem;
}

#go-top {
    position: fixed;
    right: .3rem;
    bottom: .1rem;
    padding: 1rem;
    margin: 1rem;
    z-index: 999;
}

#go-top:hover {
    color: #369ae6;
    font-weight: bold;
    transform: rotate(360deg);
    transition: all ease .618s;
}

#go-top:active {
    background-color: #EEE;
    box-shadow: 0 5px #666;
    transform: translateY(4px);
    border-radius: 0.75rem;
}

.li-item:hover {
    background-color: #f9f9f9;
    display: inline-block;
    /* transform: rotate(-5deg);
    transition: all ease .5s; */
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
    border-radius: .5rem;
}

.navbar-section #name {
    height: 36px;
    display: inline;
    line-height: 36px;
}

.btn-link {
    margin-left: 1rem;
}

.li-item:active {
    color: red;
    font-weight: normal;
    transform: translateY(2px);
    border-radius: .5rem;
}

.li-item-title {
    padding-bottom: .618rem;
    font-size: .9rem;
}

.li-item-img,
.li-item-description {
    display: inline-block;
    vertical-align: middle;
}

.li-item-description {
    width: calc(100% - 5.8rem);
}

.li-item-img {
    width: 4.8rem;
    height: 4.8rem;
    background-color: white;
    border-radius: .6rem;
    margin-right: .5%;
    object-fit: cover;
}

body {
    text-align: center;
}

@media (min-width:768px) {
    #qa-list {
        position: fixed;
        top: 2.96rem;
    }

}

.round-icon {
    width: 22px;
    height: 22px;
    display: block;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    opacity: 0.85;
    right: 0.5rem;
    position: absolute;
}

.description-ellipsis {
    text-align: justify;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    font-size: .7rem;
    word-break: break-all;
    color: #555;
}

body {
    background: linear-gradient(to bottom, #fefeff 0%, #e6e6ec 61%, #ffffff 100%);
}

a,
a:link,
a:visited,
a:hover,
a:active,
a:focus {
    text-decoration: none;
}

strong {
    font-size: larger;
    padding: .111rem;
    color: #a90d0d;
}

.subtitle {
    font-size: 1.2rem;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
    background-color: #F5F5F5;
}

/*定义滚动条轨道
 内阴影+圆角*/
::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    background-color: #F5F5F5;
}

/*定义滑块
 内阴影+圆角*/
::-webkit-scrollbar-thumb {
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, .3);
    box-shadow: inset 0 0 6px rgba(0, 0, 0, .3);
    background-color: #555;
}

.lab-container {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.12), 0 0 6px rgba(0, 0, 0, 0.04);
    color: #333;
    max-width: 600px;
    padding-top: 1rem;
    text-align: center;
    background-color: #fff;
    margin: 1rem auto;
    min-height: 100%;
}

.columns {
    margin-left: 0 !important;
    margin-right: 0 !important;
}

.banner-block {
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    color: black;
    text-shadow: 1px 1px 1px #fff;
    padding: 1.33rem 1rem 0.1rem 1rem;
    /* margin: -1rem -1rem 0.01rem -1rem; */
    text-align: center;
    /* color: #fff; */
    font-size: 1rem;
    font-weight: 700;
}

.lab-btn-starttest {
    /* 渐变背景，从亮红色渐变到深红色，增加层次感和视觉效果 */
    background: linear-gradient(to right, #FF5733, #FF2D00);

    /* 文本颜色使用白色，以保证在深色背景上的可读性 */
    color: white;
    /* 内边距和字体大小可根据需要进行调整 */
    padding: 12px 24px;
    font-size: 1rem;
    /* 边框设置为无，以保持整体美观 */
    border: none;
    /* 添加圆角，使按钮看起来更加圆润 */
    border-radius: 24px;
    letter-spacing: .211rem;
    /* 添加阴影效果，提升立体感 */
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.2);

    /* 添加过渡动画，使鼠标悬停时的状态变化更加平滑 */
    transition: all 0.3s ease;

    /* 设置光标为手形，表示这是一个可点击的元素 */
    cursor: pointer;
    width: 88.99%;
    margin-left: 5.55%;
}

/* 鼠标悬停时的样式 */
.lab-btn-starttest:hover {
    /* 渐变方向改变，增加动态视觉效果 */
    background: linear-gradient(to left, #FF5733, #FF2D00);

    /* 阴影加深，增强立体感 */
    box-shadow: 0px 6px 15px rgba(0, 0, 0, 0.3);

    /* 稍微放大按钮，增加交互反馈 */
    transform: scale(1.05);
}

/* 按钮被按下时的样式 */
.lab-btn-starttest:active {
    /* 压缩效果，给用户一种按钮被按下的感觉 */
    transform: scale(0.98);

    /* 减少阴影，模拟按钮被按下的视觉效果 */
    box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.2);
}

.columns {
    margin-left: 0 !important;
    margin-right: 0 !important;
}

.banner-lab-item {
    line-height: 2.33rem;
    display: inline-block;
    vertical-align: bottom;
    font-size: 1.2rem;
}

.content-lab {
    text-align: justify;
    line-height: 1.8rem;
    letter-spacing: 0.91px;
    font-size: 0.86rem;
    margin: 0.666rem 0;
}

.content-lab-content {
    font-size: .799rem;
    font-family: PingFang SC-Regular, PingFang SC;
    font-weight: 400;
    color: #303742;
    line-height: 1.2rem;
    padding: 0 .566rem;
    text-indent: 2em;
}

.content-lab-content h1 {
    color: #0F52BA;
    font-size: 1.222rem;
    text-align: center;
    text-indent: 0;
    margin: .888rem 0;
}

.content-lab-content h2 {
    color: #0F52BA;
    font-size: 1rem;
}

.lab-section-title {
    padding: .5rem;
}

.showMore {
    /* display: inline-block; */
    margin: 0;
    padding: 0;
    color: #333;
    font-weight: 700;
}

.content-lab-bottom strong {
    color: #fff;
}

.lab-qrcode-box {
    text-align: center;
    padding: 1rem 0;
}

.copyright {
    display: flex;
    justify-content: space-evenly;
    box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.1);
    margin: 0 !important;
    padding-top: 1rem;
}

#main {
    padding: .5rem !important;
    margin: 0 auto 1rem auto;
    max-width: 888px;
}

.avatar img {
    background-color: none !important;
}

.navbar {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin: 0;
    padding: .233rem .5rem;
}

#avator-box {
    text-align: center;
}

.lab-banne-item {
    font-family: 'Arial Black', sans-serif;
    font-size: .99rem;
    margin-bottom: 0.5rem;
}

.content-lab-content h3 a {
    color: #800000;
    margin: .888rem 0;
    font-family: 'Arial Black', sans-serif;
    /* 选择一个酷炫的字体 */
    font-size: 1rem;
    /* 设置字体大小 */
    /* 设置字体颜色 */
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    /* 添加文本阴影 */
    position: relative;
    /* 确保伪元素可以相对于此元素定位 */
    padding-left: .888rem;
    /* 为箭头留出空间 */
}

.content-lab-content h3 a::before {
    content: "";
    position: absolute;
    right: 86.66%;
    /* 放置箭头在元素外部的右侧 */
    top: 50%;
    transform: translateY(-50%);
    border: 10px solid transparent;
    /* 增加边框宽度以创建更明显的箭头 */
    border-left-color: #800000;
    /* 箭头颜色 */
    border-right: none;
    margin-right: 5px;
    /* 为箭头和元素主体之间添加一些间距 */
}