/* 1366 1440 1680 1920 */
/* @media only screen and (max-width: 768px) {
    
}
@media only screen and (min-width: 769px) and (max-width: 1000px) {
    
}
@media only screen and (min-width: 1001px) and (max-width: 1679px) {
    
}

@media only screen and (min-width: 1680px) and (max-width: 1920px) {
    
} */

/* 定义基本的样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "source";
}

@font-face {
  font-family: source;
  src: url(../resources/lib/fonts/SOURCEHANSANSCN-REGULAR.TTF);
}
@font-face {
  font-family: sourceHe;
  src: url(../resources/lib/fonts/SOURCEHANSANSCN-HEAVY.OTF);
}
html {
  overflow-y: scroll;
  scroll-behavior: smooth;
}

body {
  width: 100%;
  overflow-x: hidden;
}

p {
  font-family: 'source';
}
ul {
  list-style: none;
}

a {
  text-decoration: none;
}



/* Nav */
nav {
    height: 75px;
}
/* 离开顶部nav加黑色背景 */
.light {
  background-color: #000;
}
.navbar-brand {
    display: flex;
    align-items: center;
    height: 100%;
}
.navbar-brand img {
    width: 90%;
    height: 95%;
}
.nav-link {
    color: #FFFFFF !important;
}
.caret {
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 5px;
  vertical-align: middle;
  border-top: 4px solid;
  border-right: 4px solid transparent;
  border-left: 4px solid transparent;
}
 /* 鼠标悬停显示下拉菜单 */
.dropdown:hover .dropdown-menu {
    display: block;
}
/* 改 */
nav .logo {
  margin-left: 48px;
}
nav #navbarSupportedContent {
  margin-right: 48px;
}
nav .nav-link {
  margin: 0 16px;
}

nav #nav-item:hover {
  background: #333399;
  border-radius: 10px;
}
/* nav */

/* Footer */
.footer {
  background: #000;
  padding: 20px 0;
}
.footer .adCode {
  display: flex;
  justify-content: center;
}
.footer i {
  font-size: 20px;
  color: #FFFFFF;
  padding: 0 5px;
}
.footer p {
  font-size: 14px;
  color: #FFFFFF;
  margin-bottom: 2px;
}
.footer .address {
  margin-right: 30px;
}
.footer .adImg {
  margin-right: 30px;
}
.footer .adImg img {
  width: 100px;
  height: 100px;
}
.copyRight {
  display: flex;
  justify-content: center;
  padding-top: 20px;
}
.copyRight a {
  color: #FFFFFF;
}


@media (min-width: 1921px){
  /* nav {
    height: 100px;
  } */
  .nav-link {
    font-size: 1.5rem;
  }


  .footer p {
    font-size: 1.25rem;
    margin-bottom: 10px;
  }
  .footer .address,
  .footer .adImg {
    margin-right: 50px;
  }
  .footer .adImg img {
    width: 120px;
    height: 120px;
  }
}

@media (min-width: 1680px) and (max-width: 1920px) {
  .navbar-brand img {
    width: 95%;
    height: 100%;
  }
  .nav-link {
    font-size: 18px;
  }
  .footer p {
    font-size: 1rem;
  }
}
@media (min-width: 992px) {
  nav .nav-link {
    margin: 0 0px;
  }
}
@media (max-width: 768px) {
  nav {
    height: 60px;
  }
  nav .logo {
    margin-left: 0px;
  }
  .navbar-brand img {
      width: 90px;
      height: 25px;
  }
  .navbar-collapse {
    background:#000 !important;
  }
   /* 鼠标悬停显示下拉菜单 */
  .caret:active .dropdown-menu {
      display: block;
  }


  .footer .adCode {
    justify-content: left;
    /* padding-left: 30px; */
  }
  .footer .adCode .address {
    margin: 0 55px 15px 30px;
  }
  .copyRight {
    padding: 20px 40px 0 40px;
  }
  .footer .adImg {
    margin-right: 0;
    padding: 0px 38%;
}
}

/* lang */
.lang a {
    color: #FFFFFF;
    text-decoration: none;
    margin: 0 5px;
}
.lang a:hover {
  text-decoration: none;
}
nav .lang-active {
  background: #333399;
  padding: 10px;
  border-radius: 5px;
}
/* lang */