main{
    width: 100%;height:50rem;
    position: relative;
    border: solid rgb(13, 75, 106) 1px;box-shadow: 5px 0 5px black;
    /*background-image: radial-gradient(rgba(90, 130, 157, 0.684),rgb(0, 19, 32))*/
    background-image: url("../imgs/OrionPleiades-Imgur.jpg");
}
.head_bar{
    position: absolute;
    z-index: 1;
    left:50%;top:2rem;
    transform:translate(-50%, -50%);
    width: 8rem;
    height: 1.5rem;
    padding-top: 0.25rem;
    text-align: center;
    color: rgb(255, 255, 255);
    font-size: 15px;
    font-weight: 1000;
    font-family: monospace;
}
.head_bar::before {
    content: ''; /* To generate the box */
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    z-index: -1;
    border: solid rgb(13, 75, 106) 1px;
    box-shadow: 0 0 5px rgb(8, 163, 230),0 -5px 5px black;
    background:#234189;
    transform: perspective(.5em) rotateX(-5deg);
}

.left_nav ul{
    position: absolute;
    left: 10rem;top: 3rem;
    width: 25%;height:5rem;
    display: flex;/* 该布局仅仅影响其直接子元素。 */
    flex-direction: row;
    justify-content: space-around;
}
.left_navs{
    padding-top: 0.4rem;
    width: 3rem; height:2.5rem;
    border: solid rgb(142, 176, 192) 1px;box-shadow: 0 0 5px rgba(162, 209, 231, 0.618);
    border-bottom-left-radius: 2rem;    border-bottom-right-radius: 2rem;
    text-align: center;
    color: rgb(239, 239, 239);
    font-size: 10px;
    font-weight: 600;
    font-family: monospace;
    background: rgba(0, 19, 32, 0.578);

    transition: all 0.5s;
    -moz-transition: all 0.5s;
    -webkit-transition: all 0.5s;
    -o-transition:all 0.5s;

}
.left_navs_chosed{
    padding-top: 0.4rem;
    width: 3rem; height:3.5rem;
    border: solid rgb(142, 176, 192) 1px;box-shadow: 0 -2px 10px rgba(162, 209, 231, 0.618);
    color: rgb(0, 19, 32, 0.578);
    text-align: center;
    font-size: 10px;
    font-weight: 1000;
    font-family: monospace;
    background:rgb(239, 239, 239);

    transition: all 0.5s;
    -moz-transition: all 0.5s;
    -webkit-transition: all 0.5s;
    -o-transition:all 0.5s;
}
#login
{
    padding: 1rem;
     position: absolute;
    right: 10rem;top: 3rem;
    width: 5rem;height:5rem;
}
.user_profile{
    position: relative;
    width: 8%;
    height: 8%;
    top:14%;
    left: 82%;
    background: snow;
    text-align: center;
    transition: opacity 1s;
    z-index: 5;
    opacity: 0;
}
.user_profile div{
    margin: 1px;
    color: black;
        border: #66aee6 solid;
    font-weight: bolder;
    font-family: fangsong;
}
main div #id_p
{
    height: 32px;
    width: 32px;
    border-radius: 16px;
    background-color: #ececec;
    display: inline-block;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    background-image:none;

}
main div #id_n
{
    color: #ececec;
     text-align: center;
    font-size: 14px;
    font-weight: 2000;
    font-family: monospace;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100px;
    display: inline-block;
}

.main_window{
    position:relative;
    left:50%;top:46%;
    width: 80%;height: 80%;
    transform:translate(-50%, -50%);
    border: solid rgb(142, 176, 192) 1px;border-top: none; box-shadow: 0 4px 7px rgba(162, 209, 231, 0.618);
    background: rgba(0, 19, 32, 0.578);
}

.container{
    /*--box-size: 30%; !* 定义一个名为--box-size的变量，值为50% *!*/
    display: flex;
    align-items: center;
    flex-direction: column;
  flex-wrap: wrap;
  box-sizing: border-box;
  padding: 10px;
  border: 1px solid #ccc;
  height: 100%;
  width:100%;
}
img{
    border-radius: 5%;
}
/*资源详情*/
/* 四个悬浮球的共同样式 */
.floating-ball {
    margin:30px 30px 10px;
  position: relative;
  color: #fff;
  padding: 10px;
  transition: all 0.3s ease;

    border-radius: 50%;
    background: radial-gradient(circle,  #224E79,#333333);
    /*设置交叉轴的对齐方式为居中，同时可以使用将主轴方向设置为垂直方向，*/
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: bold;
  text-align: center;
  cursor: pointer;
  box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
}

/* 悬浮球的鼠标悬停样式 */
.floating-ball:hover {
    box-shadow: 0 0 20px #66aee6;
    background: radial-gradient(circle,  snow,#66aee6);
    font-size: 18px;
    font-weight: bolder;
    color: #333333;
}

/* 悬浮球的标签样式 */
.floating-ball span {
    width: 100px;
    height: 30px;
    margin: 20px;
  font-size: 14px;
  display: block;
  font-weight: bold;
}

/* 悬浮球的介绍文字样式 */
.floating-ball p {
    width: 100px;
    height: 300px;
  font-size: 12px;
}



/*video*/
.left-box {
    padding: 10px;
    display: flex;
    flex-direction: column;
  width: 25%;  height: 100%;
}
.play_status{
    float: left;
    width: 1rem;height: 1rem;
    border-radius: 50%;
    background: green;
}
#main_video_span{
    float: right;
    width: 70%;height: 80%;
    color: white;
    text-align: right;
    margin-top: 5%;
    border-bottom: #fff000 solid;

}
.video_card_text-body{
    float: right;
    font-size: x-small;
    font-weight: 300;
    color: snow;
    clear: both;
    margin: 10% 2% 2%;
}
#video_left_autoplay{
    width: 100%;height: auto;
    margin: 3px;
    border: solid rgb(142, 176, 192) 1px;border-top: none; box-shadow: 0 4px 7px rgba(162, 209, 231, 0.618);
}
#video_text{
    width: 100%;height: 60%;
    margin: 2px;padding: 5%;
    font-family:fangsong;
    font-size: medium;
    font-weight: 300;
    color: snow;
    overflow-y: scroll;

}
.right-box {
    display: flex;
    flex-wrap: wrap;
    padding: 10px;
  width: 70%;height: 100%;
  overflow-y: scroll;
  overflow-x: hidden;
       -ms-overflow-style:none;  /* IE and Edge 隐藏 IE、Edge的滚动条*/
}
right-box::-webkit-scrollbar {
  display: none;  /* 隐藏 Chrome、Safari 和 Opera 的滚动条 */
     width: 0;
  height: 0;
}

.video_card_texts{
  width: 25%;height: 30%;
  border: 1px solid #ddd;
  border-radius: 5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  margin: 20px;
}

.video_cards {
  display: flex;
    flex-wrap: wrap;
  width: 20%;
  height: 23%;
  border-radius: 10px;
  box-shadow: 0 0 20px 3px rgba(0, 123, 255, 0.8);
    margin: 20px;
}

.video_card-img-top-div {
    width: 100%;
    height: 100%;
    text-align: center;
    padding: 2px;
}
.video_card_text {
  width: 100%;
  padding: 10px;
  background: linear-gradient(rgba(0, 123, 255, 0.8), transparent);
  border-radius: 0 0 10px 10px;
  transition: background-color 0.3s ease;
}
.video_card_text div{
    float: left;
    width: 15px;
    height: 15px;
    margin: 2px;
    background-repeat: no-repeat;
    background-size: contain;
    cursor: pointer;
}
.video_card_text a {
    float: right;
    width: 70%;
    height: 100%;
  display: block;
  color: #fff;
  font-size: xx-small;
}

.video_card_text:hover {
  background: linear-gradient(rgba(0, 105, 217, 0.8), transparent);
}

/* "我的"界面*/

/* Container */
#index_mine {
  justify-content: space-between;
  font-family: Arial, sans-serif;
  color: #fff;
  padding: 10px;
}
#left-box-mine{
    padding: 5%;
    margin: 0 auto 0;
}
#left-box-mine div{
    width: 50%;
    height: 60%;
    padding: 10%;
    border: white solid 1px;
    border-radius: 6%;
    box-shadow: 0 0 1rem .5rem #E4FEFF;
}

.left-box img {
  width: 50%;
  height: 30%;
  border-radius: 50%;
  margin: 10% 25% 0;

}
.signature {
      width:  50%;
    height: 20%;
    margin: 10% 25% 0;
}
.user-options{
      width: 80%;height: 10%;
    float: left;
     display: flex;
    flex-direction:row;/*row:行 column:列*/
    justify-content: flex-start;
}
.user-options li{
    width: 30%;height: 10%;
    padding: 5%;
    margin: 5%;
    color: white;
    font-family: 黑体, serif;
    font-size: x-small;
    font-weight: normal;
    cursor: pointer;
}
.user-options li:hover{
    color: #66aee6;
}
.user-options li:first-child{
    float: left;
}
.user-options li:last-child{
    float: right;
}
#right-box-mine{
    display: unset;
    padding: 10px;
    margin-right: 3%;
  width: 60%;height: 100%;
  overflow-y: scroll;
  overflow-x: hidden;
}
#right-box-mine::-webkit-scrollbar {
  display: none;  /* 隐藏 Chrome、Safari 和 Opera 的滚动条 */
     width: 0;
  height: 0;
}
#right-box-mine h2 {
  margin-bottom: 20px;
}
.mine_rightbox_chosed{
  padding: 0;
  margin: 0;
  width: 90%;height: 10%;
  background-color: #00152b;
}
.mine_rightbox_chosed ul{
        width: 80%;height: 100%;
    float: left;
     display: flex;
    flex-direction:row;/*row:行 column:列*/
    justify-content: flex-start;
}
.mine_rightbox_chosed ul li{
    width: 15%;height: 50%;
    float: left;
    padding: 2%;
    margin: 1%;
    color: white;
    font-family: 黑体, serif;
    font-size: x-small;
    font-weight: normal;
    border-top-left-radius: 10%;
    border-top-right-radius: 10%;
    cursor: pointer;
    transition: all 1s;
}
.mine_command{
    float: right;
    color: #66aee6;
    font-family: fangsong;
    font-weight: bold;
    cursor:pointer;
}
.mine_command:hover{
    color: snow;
}
.record-row {
  display: flex;
    flex-wrap: wrap;
  justify-content: flex-start;
    border: #E4FEFF solid 1px;
    box-shadow: 0 0 1rem .5rem #436495;
}

.record-block {
    width: 100%;
    height: 30%;
    background-color: #032541;
  padding: 20px;
  border-radius: 5px;
  margin-bottom: 20px;
}
.NoContent{
    display: block;
    width: 100%;
    height: 70%;
    margin: 0 auto 0;
    color: gray;
}
.record-block h3 {
  color: #fff;
  margin-bottom: 10px;
}

.record-block ul {
    display: flex;
    flex-wrap: wrap-reverse;
    width: 100%;
    height: 100%;
  list-style-type: none;
  padding: 0;
  margin-bottom: 10px;
}

.record-block ul li {
    width: 25%;
    height: 25%;
    margin: 2% 2% 5px;
    box-shadow: 0 0 2px 0 #E4FEFF;

}
.record-block .delete_icon{
    display: none;
    float: right;
    width: 15px;
    height: 15px;
    margin: 2px;
    background-repeat: no-repeat;
    background-size: contain;
    cursor: pointer;
}
#mine_video_card_text{
    width: 85%;
}
#mine_video_card_text a{
    float: unset;
    width: 100%;
}


/*.video_card_text-img-top {*/
/*  width: 100%;*/
/*  height: 100%;*/
/*  object-fit: cover;*/
/*}*/

/*.video_card_text {*/
/*    display: block;*/
/*    width: 100%;*/
/*    margin-top: 10px;*/
/*    background-color: #007bff;*/
/*    border-radius: 5px;*/
/*}*/
/*.video_card_text a {*/
/*    color: #fff;*/
/*    text-align: center;*/
/*    font-size: 1em;*/
/*    text-decoration: none;*/
/*}*/
/*.video_card_text:hover{*/
/*  background-color: #0069d9;*/
/*}*/