*{
    padding: 0;
    margin: 0;
}
a{
    text-decoration: none;
}
html{
    width: 100%;
    min-width: 1200px;
}
body{
    width: 100%;
    min-width: 1200px;
    min-height: 970px;
    height: 100%;
    background: url(../images/index_bg.jpg) no-repeat;
    background-size: 100% 100%;
}

html::-webkit-scrollbar {
    /*滚动条整体样式*/
    width: 4px; /*高宽分别对应横竖滚动条的尺寸*/
    height: 1px;
  }
  html ::-webkit-scrollbar-thumb {
    /*滚动条里面小方块*/
    border-radius: 10px;
    box-shadow: inset 0 0 5px rgba(97, 184, 179, 0.1);
    background: #78b4b4;
  }
  html ::-webkit-scrollbar-track {
    /*滚动条里面轨道*/
    box-shadow: inset 0 0 5px rgba(87, 175, 187, 0.1);
    border-radius: 10px;
    background: #ededed;
  }
.header{
    width: 1200px;
    margin: auto; 
}
.name{
    width: 100%;
    height: 90px; 
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.user{
    font-weight: bold;
    letter-spacing: 3px;
    color: #fff;
    cursor: pointer;
}

.user p{
    user-select: none;
}
.test{
    margin-left: 50px;
}


.nav p{
    color: #fff;
}

.nav{
    width: 100%;
    height: 80px; 
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav_list{
    width: 110px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
}

.nav_list:hover{
    background: rgba(177, 199, 234, 0.45);
    border-radius: 3px;
}
.nav_select{
    background: rgba(177, 199, 234, 0.45);
    border-radius: 3px;
}

.footer{
    width: 100%;
    height: 40px;
    background: rgba(177, 199, 234, 0.45);
    margin-top: 20px;
    display: flex;
    justify-content: center;
}

.footer_box{
    width: 1200px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    color: #fff; 
    letter-spacing: 3px;
}