a{
    color: black;
    text-decoration: none;
}
.button{
    background-color: #ffffff;
    color: white;
    z-index: 10;
    width: 200px;
    height: 50px;
    text-decoration: none;
    text-align:center;
    vertical-align: bottom;
    transition: width 0.2s, height 0.2s,background-color 0.3s,color 0.1s;
    animation-fill-mode: both;
    margin: 10px auto 0;
    font-size: 1.3rem;
    border-radius: 10px;
    border: solid 1px;
    outline: none; // 去掉外边的蓝色边框
background-color: rgba(0, 0, 0, 0);// 透明背景
}
.button:hover{
    color: #8c8c8c;
    font-color: #dcdcdc;
}
.ghost{
    background: transparent; /*完全透明*/
    border: solid 1px;
}
barleft{
    float: left;
    position: relative;
    left: 1vw;
}
barright{
    position: relative;
    float:right;
    left: -3%;
}
.barul {
    position: fixed;
    list-style-type: none;
    margin: 0;
    padding: 0;
    height:50px;
    background-color: #2d2d2d;
    transition: width 0.2s, height 0.2s,background-color 0.3s;
    width: 100vw;
    z-index: 1000;
}
barli {
    float:left;
    font-size: 1rem;
    transition: width 0.2s, height 0.2s,background-color 0.3s;
}

barli a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    transition: width 0.2s, height 0.2s,background-color 0.3s;
}

barli a:hover {
    background-color: #111;
}
.Lbarul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 200px;
    background-color: #3b3b3b;
}
barli a.active {
    background-color: rgb(17, 17, 17);
    color: white;
}
.dropbtn {
    background-color: #3b3b3b;
    color: black;
    padding: 16px;
    font-size: 16px;
    border: none;
    cursor: pointer;
    z-index: 1;
}

/* 容器 <div> - 需要定位下拉内容 */
.dropdown {
    position: relative;
    top: 100%;
    z-index: 1000;
}

/* 下拉内容 (默认隐藏) */
.dropdown-content {
    display: none;
    position: absolute;
    top: 5.4ch;
    background-color: #3b3b3b;
    margin: 0;
    font-size: 1rem;
    width: 4.9cm;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
    transition: width 0.2s, height 0.2s,background-color 0.3s;
    border-radius: 10px;
}

/* 下拉菜单的链接 */
.dropdown-content a {
    color: #ffffff;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    right: 0;
    transition: width 0.2s, height 0.2s,background-color 0.3s;
    border-radius: 10px;
}

/* 鼠标移上去后修改下拉菜单链接颜色 */
.dropdown-content a:hover {background-color: #252525;}

/* 在鼠标移上去后显示下拉菜单 */
.dropdown:hover .dropdown-content {
    transition: all 0.3s;
    display: block;
    z-index: 1000;
}

/* 当下拉内容显示后修改下拉按钮的背景颜色 */
.dropdown:hover .dropbtn {
    background-color: #3b3b3b;
}



.windows{
    position: relative;
    width: 400px;
    height: 200px;
    left: 0px;
    right: 0;
    opacity: 1;
    background-color: #3b3b3b;
    color: white;
    z-index: 2;
    transition: width 0.5s, height 0.5s, top 0.5s, left 1s, opacity 1s, z-index 5s;
    border-radius: 0.6vmax;
    /* 添加阴影 */
    box-shadow: 0px 0px 10px #3b3b3b; /* 以适当的阴影参数替换 */
}
.Digital{
    position: fixed;
    z-index: 9999;
    width: 33%;
    height: 25%;
    top: 12vh;
    right:0;
    left: 32%;
    opacity: 0;
    background: rgba(255, 255, 255, 0.2);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-radius: 10px;
    box-shadow:inset 0 0 6px rgba(255, 255, 255,0);
    transition: top 500ms;
    text-align: center;
}
.Digital text{
    position: relative;
    top: 20%;
}
.DigitalBackGroundColor{
    position: fixed;
    z-index: -9999;
    opacity: 0;
    background-color: #151515;
    right: 0;
    left: 0;
    top: 0;
    width:100vw;
    height: 100vh;
    transition: opacity 1s;
}
.NotationsNotice{
    position: fixed;
    width: 30vw;
    height: 130px;
    left: 78.5vw;
    background: white;
    top: 1vh;
    box-shadow: 0px 0px 10px #3b3b3b; /* 以适当的阴影参数替换 */
    border-radius: 10px;
    font-size: 1.2rem;
    background: rgba(255, 255, 255, 0.2);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    opacity: 0;
}
.Noticetitle{
    position: relative;
    font-size: 1.6rem;
    left: 2%;
    top: 4%;
}
.Noticetext{
    position: relative;
    z-index: 11;
    width: 70%;
    height: 80%;
    font-size: 1.2rem;
    left: 2%;
    top: 4%;
}
.NoticeImg{
    position: relative;
    top: -102%;
    z-index: 0;
    width: 120px;
    height: 120px;
    left:22vw;
    right: 0;
}
.tips{
    z-index: 1000;
    width: 200px;
    height: 50px;
    position: fixed;
    left: 43cm;
    top:0vh;
    background: #ffffff;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-radius: 3px;
    box-shadow:inset 0 0 6px rgba(255, 255, 255,0);
    opacity: 0;
    font-size: 1.2rem;
    text-align: center;
}
.tips text{
    position: relative;
    top: 22%;
}
.textunderline{
    position:relative;
    width: 100%;       /*控制字体下划线的长度*/
}
.textunderline::after{
    content:'';
    display:block;
    /*开始时候下划线的宽度为100%*/
    width:93%;
    height:3px;
    position:absolute;
    bottom:0px;
    background:#000;
    transition:all 0.3s ease-in-out;
    /*通过transform的缩放scale来让初始时x轴为0*/
    transform: scale3d(0,1,1);
    /*将坐标原点移到元素的中间，以原点为中心进行缩放*/
    transform-origin:50% 0;
}
.textunderline:hover::after{
    /*鼠标经过时还原到正常比例*/
    transform:scale3d(1,1,1);
}

.progress-bar {
    z-index: 1;
    width: 1000px;
    height: 20px;
    background-color: #f2f2f2;
    border-radius: 5px;
    overflow: hidden;
    border-radius: 10px;
}

.progress {
    height: 100%;
    background-color: #2a2a2a;
    width: 50%;
    border-radius: 5px;
    transition: width 1s ease;
}
.progress.gradation{
    background: linear-gradient(to right, #2a2a2a, #ababab);
}
.progress {
    width: 50%;
}
.videoContent{
    position: absolute;
    width: 900px;
    height: auto;

}
.videoPlay{
    position: relative;
    z-index: -1;
    width: 100%;
    height: auto;
}
.videoControl{
    position: relative;
    z-index: 2;
    left: 0;
    margin-top: -54.2%;
    margin-left: auto;
    right: 0;
    width: 100%;
    height: 100%;
    display: flex;
    background-color: rgba(145, 145, 145, 0);
    color: white;
}
.videoControl img{
    width: 35px;
}
.videoControl .PlayButton{
    position: relative;
    float: left;
    right: 0;
    left: 1%;
    top: 80%;
}
.videoControl.FullScreen{
    position: relative;
    opacity: 0;
}