/* Xiaoxue Song*/

/*index.html*/

*{
  box-sizing:border-box;
  font-size:0.9em;
  line-height:1em;
}

html,body{
  padding:0;
  margin:0 auto;
  width:100%;
}

.top{
  width:100%;
  background:#1b4661;
  height:50px;
}

@media(max-width:720px){
  .top{
  width:100%;
  background:#1b4661;
  height:110px;
}
}

.top>a{
  color: #fff;
  line-height: 50px;
  text-align: center;
  height: 50px;
  float: left;
  font-size: 2.1em;
  padding: 5px;
  font-weight: bold;
  margin-left: 40px;
  margin-right: 40px;

}

.bottom{
  width: 100%;
  height: 50px;
  border-top: 3px solid #c3c3c3;
  background: #1b4661;
  line-height: 50px;
  color: #fff;
  text-align: center;
  font-size: 18px;
}

.index-content{
  width:100%;
  height:442px;
  background-image:url('../image/bg1.jpg');
  background-position:center;
  position:relative;
}

@media(max-width:960px){
  .index-content{
  width:100%;
  height:519px;
  background-image:url('../image/bg1.jpg');
  background-position:center;
  position:relative;
  }
}

.index-content>div:nth-of-type(1){
  width: 60%;
  height: auto;
  background-color: rgba(255, 255, 255,.3);
  color: #fff200;
  float: right;
  font-size: 2.6em;
  line-height: 2em;
  margin: 20px 10px 0 0;
  padding-left: 10px;
  font-family: Comic Sans MS, cursive, san-serif;
  font-weight: bold;
  font-style: italic; 
 }

@media(max-width:960px){
  .index-content>div:nth-of-type(1){
  width: 60%;
  height: auto;
  background-color: rgba(255, 255, 255,.3);
  color: #fff200;
  float: right;
  font-size: 2.6em;
  line-height: 1.6em;
  margin: 20px 10px 0 0;
  padding-left: 10px;
  font-family: Comic Sans MS, cursive, san-serif;
  font-weight: bold;
  font-style: italic; 
 }
}


.index-content>div:nth-of-type(2){
  position: absolute;
  bottom: 0;
  width: 100%;
  color: yellow;
  height: auto;
  background-color: rgba(255,255,255,.3);
  line-height: 2em;
  padding: 10px;
  font-size: 2em;
}

@media(max-width:960px)
{
 .index-content>div:nth-of-type(2){
  position: absolute;
  bottom: 0;
  width: 100%;
  color: yellow;
  height: auto;
  background-color: rgba(255,255,255,.3);
  line-height: 1.5em;
  padding: 10px;
  font-size: 1.6em;
}
}



.index-content2{
  width:100%;
  background:#1b4661;
  border-top:3px solid #c3c3c3;
  height:325px;
  font-family: Comic Sans MS, cursive, san-serif;
  font-weight: bold;
  font-style: italic; 
}

@media(max-width:480px){
  .index-content2{
  width:100%;
  background:#1b4661;
  border-top:3px solid #c3c3c3;
  height:578px;
  font-family: Comic Sans MS, cursive, san-serif;
  font-weight: bold;
  font-style: italic; 
}
}


.index-content2>p{
  color: #fff200;
  font-size:2.6em;
  font-weight:bold;
  padding-left:10px;
}

.index-content2>div{
  display:flex;
  padding:0 100px;
  height:300px;
}

@media(max-width:480px){
  .index-content2>div{
  display:block;
  padding:0 48px;
  height:300px;
}
}


.index-content2>div>div{
  flex:1;
  text-align:center;
}



.index-content2>div>div>img{
  

  max-width:393px;
  height:auto;
  max-height:200px;
}

@media(max-width:960px){
.index-content2>div>div>img{
  
  width:100%;
  max-width:393px;
  height:auto;
  max-height:200px;
}

}

@media(max-width:480px){
.index-content2>div>div>img{
  
  width:100%;
  max-width:393px;
  height:auto;
  max-height:200px;
}

}

.index-content2>div>div>div>a{
  font-size:18px;
  color:#fff200;
}



/*topic and third .html*/



.topic-content{
  width:100%;
  height:auto;
  background-image:url('../image/bg2.jpg');
  background-size:100% 100%;
  position:relative;
  padding:10px;
  font-size:1.6em;
}

@media(max-width:960px){

}

.topic-content>div:nth-of-type(1){
  padding: 10px;
  background-color:rgba(0,0,0,.3);
  width: 100%;
  height: auto;
}

.topic-content>div:nth-of-type(1)>p:nth-of-type(1){
  font-size: 2em;
  font-weight: bold;
  font-family: Comic Sans MS, cursive, san-serif;
  font-style: italic; 
  color:#fff200;
  margin-block-start: 0;
}

.topic-content>div:nth-of-type(1)>p:nth-of-type(2){
  color:#fff;
  line-height:2;
  font-size:1.6em;
}

@media(max-width:960px){
  .topic-content>div:nth-of-type(1)>p:nth-of-type(2){
  color:#fff;
  line-height:2;
  font-size:1.3em;
}
}

.topic-content>div:nth-of-type(2)>div{
  width: 49%;
  padding: 10px;
  text-align: center;
  background-color: rgba(0,0,0,.3);
  margin-top: 10px;
  display: inline-block;
  color: #fff;
  height: auto;
  vertical-align: top;
}

@media(max-width:960px){
.topic-content>div:nth-of-type(2)>div{
  width: 100%;
  padding: 10px;
  text-align: center;
  background-color: rgba(0,0,0,.3);
  margin-top: 10px;
  display: inline-block;
  color: #fff;
  height: auto;
  vertical-align: top;
}
}

.topic-content>div:nth-of-type(2)>div>p{
  text-align: left;
  line-height: 1.5;
  font-size:1.6em;
}

@media(max-width:960px){
.topic-content>div:nth-of-type(2)>div>p{
  text-align: left;
  line-height: 1.5;
  font-size:1.6em;
}

}

.topic-content>div:nth-of-type(2)>div>img{
  width:300px;
  max-width:100%;
}




/*references.html*/

.forth-content{
  width:100%;
  height:835px;
  background-image:url('../image/bg3.jpg');
  background-position:center;
  padding:10px;
  font-size:1.5em;
}

@media(max-width:960px){
  .forth-content{
  width:100%;
  height:996px;
  background-image:url('../image/bg3.jpg');
  background-position:center;
  padding:10px;
  font-size:1.2em;
}
}

.forth-content>div{
  width:49%;
  background-color:rgba(0,0,0,.3);
  color:#fff;
  float:left;
  padding:10px;
}


@media(max-width:960px){
  .forth-content>div{
  width:100%;
  background-color:rgba(0,0,0,.3);
  color:#fff;
  float:left;
  padding:10px;
  font-size:1.6em;
}
}

.forth-content>div>p:nth-of-type(1){
  font-size:20px;
  color:#fff200;
  font-family: Comic Sans MS, cursive, san-serif;
  font-style: italic; 
  font-weight:bold;
  
}

.forth-content>div:nth-of-type(2)>ul>li{
  line-height:1.3;
  margin-bottom: 5px;
}

.forth-content>div:nth-of-type(2)>ul>li>a{
  color:#fff;
}

.forth-content2{
  display:flex;
  padding:10px;
  background:#1b4661;
}

@media(max-width:480px){
.forth-content2{
  display:block;
  padding:10px;
  background:#1b4661;
}
}



.forth-content2>form{
  flex:1; 
  padding:20px;
}
.forth-content2>form>h1{
   color:#fff200;
   font-family: Comic Sans MS, cursive, san-serif;
   font-weight:bold;
   font-size: 18px;
}

.forth-content2>form>.form-group> {
      padding-bottom:15px;
}

.forth-content2>form>.form-group>label {
	  display:block;
	  color: #fff;
      font-size: 18px;
	  
}	  
	  
.forth-content2>form>.form-group>input {
  padding:5px;
  width:40%;
}