*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

header{
    position: fixed;
    float: left;
    height: 60px;
    width: 100%;
    background-color: rgb(45, 43, 43);
    opacity: 0.8;
    z-index: 99;
}

a{
    text-decoration: none;
}

a:hover{
    text-decoration: none;
}

li{
    list-style: none;
}

nav ul{
    margin-right: 64px;
    float: right;
}

nav li{
    float: left;
}

nav ul li a{
    display: block;
    float: left;
    padding: 0 5px;
    margin: 0 10px;
    line-height: 57px;
    font-size: 18px;
    color: rgb(195, 195, 195);
    height: 100%; 
}

.activer{
    background-color: #080808 !important;
    display: block;
    float: left;
    padding: 0 5px;
    margin: 0 10px;
    line-height: 57px;
    font-size: 18px;
    color: rgb(195, 195, 195);
    height: 100%; 
    cursor: pointer;
}

.container{
    width: 1200px;
    margin: auto;
}

.hidden{
    display: none;
}

.navbars{
    color: white;
    height: 100%; 
}

.navbars .home{
    display: block;
    float: left;
    padding: 0 15px;
    line-height: 57px;
    font-size: 20px;
    color: rgb(195, 195, 195);
    height: 100%; 
}

.navbars a:hover{
    color: white;
    border-bottom: 1px solid white;
}

header nav .user-login{
    float: right;
    height: 100%;
    width: 207px;
    padding: 5px;
}

header nav .user-logout{
    float: right;
    height: 100%;
    width: 100px;
    padding: 5px;
}

header nav .user-logout a{
    display: block;
    width: 100%;
    height: 100%;
    text-align: center;
    font-size: 18px;
    line-height: 48px;
    color: azure;
}

header nav .user-logout a:visited{
    color: azure !important;
}

header nav .user-login img{
    display: block;
    float: left;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    line-height: 60px;
}

header nav .user-login span{
    float: left;
    display: block;
    height: 100%;
    font-size: 18px;
    margin: auto 20px;
    line-height: 48px;
}

.hint-success{
    position: fixed;
    left: calc(50% - 222px);
    top: 100px;
    width: 444px;
    height: 121px;
    border-radius: 10px;
    z-index: 99;
    border: 2px solid rgb(11, 216, 21);
    background-color: rgba(255, 255, 255, 0.5);
    text-align: center;
    line-height: 121px;
    color: rgb(14, 154, 33);
    font-size: 30px;
    opacity: 0;
}

.hint-warn{
    position: fixed;
    left: calc(50% - 222px);
    top: 100px;
    width: 444px;
    height: 121px;
    border-radius: 10px;
    z-index: 99;
    border: 2px solid rgb(255, 45, 3);
    background-color: rgba(255, 255, 255, 0.5);
    text-align: center;
    line-height: 121px;
    color: rgb(142, 22, 22);
    font-size: 30px;
    opacity: 0;
}

.self-a{
    display: block;
    color: azure;
    width: 100%;
    height: 100%;
}

.self-a:link{
    color: azure;

}

.self-a:active{
    color: rgb(35, 247, 247);
}

.self-a:hover{
    color: white;
    border-bottom: 1px solid white;
}

.self-a:visited{
    color: azure;
}











.footer{
    background-color: rgba(50, 50, 50, 0.8);
    padding: 15px;
    border-radius: 5px;
    margin-top: 20px;
    /* position:relative; */
    left: calc(50% - 585px);
    /* bottom: 0; */
    z-index: 99;
}

.footer span{
    display: block;
    text-align: center;
    font-size: 15px;
    color: rgb(168, 168, 168);
}

.footer span a{
    color: rgb(150, 155, 155);
}




html,body{
    height: 100%;
}
body{
    background-color: rgba(47, 45, 45, 0.8);
}

/* .nab{
    
} */

.layout{
    height: 917px;
}

.menuItr{
    font-size: 15px;
}

.input-text{
    width: 100%;
    font-size: 18px;
}

.page{
    display: block;
    text-align: center;
    background-color: rgb(35, 34, 36) !important;
    margin: auto;
    height: 55px;
    width: 80%;
    border-radius: 10px;
    z-index: 99;
}
.page li{
    float: left;
    list-style: none; 
    padding:7px;
    margin: 5px;
    height: 100%;
    width: 60px;
}
.page li span{
    padding: 0;
    margin: 0;
}
.page button{
    display: block;
    cursor: pointer;
    color: aliceblue;
    background-color: rgb(85, 85, 77);
    padding-top: 2px;
    width: 100%;
    height: 30px;
    font-size: 10px;
    border-radius: 5px;
    outline: 0;
    border: 0;
}
.page button:hover{
    outline: 1px solid rgb(91, 246, 238);;
    text-decoration: none;
    color: rgb(198, 255, 99);
}

.navbar{
    opacity: 80%;
    z-index: 2;
    width: 100%;
}

.cpt-navbar{
    position: fixed;
}










/* 返回顶部 */
.go-top{
    display: block;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 30px;
    font-weight: 900;
    padding-bottom: 3px;
    cursor: pointer;
    opacity: 0.9;
    position: fixed;
    right: 150px;
    bottom: 180px;
    background-color: rgb(42, 42, 56);
    color: rgb(255, 255, 255);
    border: 1px solid wheat;
}

.go-top:hover{
    background-color: rgb(156, 156, 171);
    color: rgb(55, 54, 54);
    border: 1px solid rgb(25, 25, 25);
}

/* 置顶时的属性 */
#topNavbar{
    background: none;
    border: none;
}
.activer > a{
    background: none;
}
.navbar-mid{
    float: right;
}



/* 响应式布局的视频背景 */
#videoBG{
    position: fixed;
    z-index: -1;
}

@media(min-aspect-ratio:16/9) {
    #videoBG{
        width: 100%;
        height: auto;
    }
}

@media(max-aspect-ratio:16/9) {
    #videoBG{
        width: auto;
        height: 100%;
    }
}

@media(max-width:767px) {
    #videoBG{
        display: none;
    }
}


/* 设置最大收缩导航栏的数值 */
@media (max-width: 1196px) {
    .navbar-header {
        float: none;
    }
    .navbar-left,.navbar-right {
        float: none !important;
    }
    .navbar-toggle {
        display: block;
    }
    .navbar-collapse {
        border-top: 1px solid transparent;
        box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
    }
    .navbar-fixed-top {
        top: 0;
        border-width: 0 0 1px;
    }
    .navbar-collapse.collapse {
        display: none!important;
    }
    .navbar-nav {
        float: none!important;
        margin-top: 7.5px;
    }
    .navbar-nav>li {
        float: none;
    }
    .navbar-nav>li>a {
        padding-top: 10px;
        padding-bottom: 10px;
    }
    .collapse.in{
        display:block !important;
    }
  }