/* --- Navbar --- */

.navbar-custom {
  background: #F5F5F5;
  background-image: url("/20210330143148oe_/http://www.cuhk.edu.hk/sci/essc/yang/img/navbar_background.jpg");
  background-repeat: no-repeat;
  background-size:cover;

  border-bottom: 1px solid #EAEAEA;
  font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  /* min-height: 250px; */
}

.navbar-custom .nav li a {
  /* 导航栏的字体 */
  text-transform: uppercase;
  font-size: large;
  letter-spacing: 1px;
  font-weight: 800;
  /* 导航栏字体颜色 */
  color: rgb(0, 38, 111);
}

.navbar-custom .navbar-brand:hover,
.navbar-custom .navbar-brand:focus ,
.navbar-custom .nav li a:hover,
.navbar-custom .nav li a:focus {
  color: rgb(64, 117, 157);  /* color: #0085a1; *//*导航鼠标focus后颜色*/
}

.navbar-custom .avatar-container {
  opacity: 1;
  display: none;
  
  position: relative;
  -webkit-transition: opacity 0.5s ease-in-out;
  -moz-transition: opacity 0.5s ease-in-out;
  transition: opacity 0.5s ease-in-out;
  left: 0%;
  width: 50px;
  margin-top: -50px;
  /* margin-top: -25px; */
}

/* 实验室名称 默认不显示 */
.navbar-brand{
  font-weight: 800;
  font-size: 28px;
  opacity: 0;
  display: none;
}
.navbar-custom.top-nav-short .navbar-brand{
  opacity: 1;
  display: block;
}

/* 地球LOGO container */
.navbar-custom .avatar-container .avatar-img {
  width: 100%;
  border-radius: 0%;
  margin-top: 15px;
}
.navbar-custom .avatar-container{
  opacity: 0;
  display: none;
}
.navbar-custom.top-nav-short .avatar-container{
  opacity: 0;
  display: none;
}
  /* 手机上不显示*/
.navbar-custom.top-nav-expanded .avatar-container  {
  display: none;
}

@media only screen and (min-width: 1268px) { /*如果屏幕够宽*/
  .navbar-custom {
    padding: 20px 0;
    -webkit-transition: background .5s ease-in-out,padding .5s ease-in-out;
    -moz-transition: background .5s ease-in-out,padding .5s ease-in-out;
    transition: background .5s ease-in-out,padding .5s ease-in-out;
  }

  /* 页面拖动到下面时的设置 */
  .navbar-custom.top-nav-short {
    padding: 0;
    /* min-height: 50px; */
  }

  .navbar-custom .avatar-container {
    width: 220px;  /*logo宽度*/
    /* margin-top: -10px;
    margin-left: 60px; */
    margin-top: -73px;
    margin-left: 3px;
  }
  
  .navbar-custom .avatar-container .avatar-img-border {
    /* width: 100%;
    box-shadow: 1px 1px 2px rgba(0, 0, 0, .8);
    -webkit-box-shadow: 1px 1px 2px rgba(0, 0, 0, .8);
    -moz-box-shadow: 1px 1px 2px rgba(0, 0, 0, .8); */
  }
  
  .navbar-custom .avatar-container {
    opacity: 1; /*如果尺寸够大则显示LOGO*/
    display: block;
  }
  .navbar-custom .avatar-container .avatar-img {
    /* width: 100%; */
    /* opacity: 1; 如果尺寸够大则显示LOGO
    display: block; */
  }

  .navbar-custom .nav .navlinks-container {
    text-align: center;
  }  
  .navbar-custom .nav .navlinks-container:hover {
    background: #eee;
  }
  .navbar-custom .nav .navlinks-container:hover .navlinks-children {
    display: block;
  }
  .navbar-custom .nav .navlinks-children {
    position: relative;
  }
  .navbar-custom .nav .navlinks-container .navlinks-children a {
    padding-left: 10px;
    border: 1px solid #eaeaea;
    border-width: 0 1px 1px;
  }
}
@media only screen and (max-width: 1268px) {
  .navbar-brand{
    opacity: 1;
    display:block;
  }
  .navbar-container{
    opacity: 0;
    display: none;
  }
}


@media only screen and (max-width: 1268px) { /*如果屏幕不够宽*/
  .navbar-custom .nav .navlinks-container.show-children {
    background: #eee;
  }
  .navbar-custom .nav .navlinks-container.show-children .navlinks-children {
    color: red;
    background-color: blue;
    display: block;
  }
}

/*导航栏字体大小随窗口变动*/
@media only screen and (max-width: 1340px) { 
  .navbar-custom .nav li a {
    font-size: medium;
    font-weight: 800;
  }
}
@media only screen and (min-width: 1345px) { 
  .navbar-custom .nav li a {
    font-size: large;
    font-weight: 800;
  }
}
@media only screen and (min-width: 1588px) { 
  .navbar-custom .nav li a {
    font-size: x-large;
    font-weight: 1000;
  }
}

/* Multi-level navigation links */
.navbar-custom .nav .navlinks-container {
  position: relative;
}
.navbar-custom .nav .navlinks-parent:after {
  content: " \25BC";
}
.navbar-custom .nav .navlinks-children {
  width: 100%;
  display: none;
  word-break: break-word;
}
.navbar-custom .nav .navlinks-container .navlinks-children a {
  display: block;
  padding: 10px;
  padding-left: 30px;
  background: #f5f5f5;
  text-decoration: none !important;
  border-width: 0 1px 1px 1px;
  font-weight: normal;
}






.navbar-custom .avatar-container .avatar-img-border {
  /* width: 100%;
  border-radius: 0%; */
  /* margin-left: -50%; */
  /* display: inline-block;
  box-shadow: 0 0 8px rgba(0, 0, 0, .8);
  -webkit-box-shadow: 0 0 5px rgba(0, 0, 0, .8);navbar-brand
  -moz-box-shadow: 0 0 8px rgba(0, 0, 0, .8); */
}