body, div, p, h1, h2, h3, h4, ul, li, a, img, span, dl, dt, dd, input {
    margin: 0;
    padding: 0;
}

li {
    list-style: none;
}

img {
    border: 0 none;
    vertical-align: top;
}

a { 
    text-decoration: none;
    display: block；
    color: inherit;
}

body{ font-family: 微软雅黑;   } 

.dise1{ background:#0C4C63 }
.dise2{ background:#13260C }
.dise3{ background:#235463 }


@media only screen and (max-width: 1920px){
	.bg1,.bg2,.bg3{ width:1920px; height:1080px; margin: 0 auto; position: relative;}
	.bg1{ background:url(../img/bg1.png) }
	.bg2{ background:url(../img/bg2.png?a) }
	.bg3{ background:url(../img/bg3.png?a) }

	/* .nav{   width:1200px; height:381px; position:absolute; top:330px; left:450px } */
	.nav{   width:1200px; height:381px; position:absolute; top:480px; left:500px }
	/* .nav img{ width:300px; height:381px; margin-right:70px;filter: drop-shadow(5px 5px 10px  rgba(0,0,0,0.5));  } */
	.nav img{ width:240px; height:304.8px; margin-right:70px;filter: drop-shadow(5px 5px 10px  rgba(0,0,0,0.5));  }
	.nav img:nth-child(3n){ margin-right:0 }

	/* .an1,.an2{width:308px; height:92px; position:absolute; top:805px } */
	.an1,.an2{width:308px; height:92px; position:absolute; top:855px }

	.an1{ left:663px; }
	.an2{ left:990px}


	.an1 img,.an2 img{width:308px; height:92px }

	.di{ position:absolute; width:311px; height:52px ; left:805px; top:966px }
	.di img{width: 311px; height: 52px}

	/* .lvan1,.lvan2{ width:276px; height:160px; position: absolute;; top:422px  ; filter: drop-shadow(5px 5px 10px  rgba(0,0,0,0.5));  } */
	.lvan1,.lvan2{ width:251.1px; height:144px; position: absolute;; top:481px  ; filter: drop-shadow(5px 5px 10px  rgba(0,0,0,0.5));  }
	.lvan1{ left:683px }
	.lvan2{ left:1010px }
	.lvan1 img,.lvan2 img{  width:100%;   }

	/* .lanan1,.lanan2,.lanan3,.lanan4,.lanan5{ width:276px; height:160px; position:absolute; filter: drop-shadow(5px 5px 10px  rgba(0,0,0,0.5)); } */
	.lanan1,.lanan2,.lanan3,.lanan4,.lanan5,.lanan6{ width:251.1px; height:144px; position:absolute; filter: drop-shadow(5px 5px 10px  rgba(0,0,0,0.5)); }
	.lanan1 img,.lanan2 img,.lanan3 img,.lanan4 img,.lanan5 img,.lanan6 img{width: 100%}
	/* .lanan1,.lanan2,.lanan3,.lanan4{ top:321px } */
	.lanan1,.lanan2,.lanan3,.lanan4{ top:481px }
	.lanan1{ left:383px }
	.lanan2{ left:691px }
	.lanan3{ left:999px }
	.lanan4{ left:1307px }
	/* .lanan5{ left:383px; top:536px } */
	.lanan5{ left:383px; top:660px }
	.lanan6{ left:691px; top:660px }

	.clound{ position:absolute; left:0; top:0; background:url(../img/clound.png?1); width:1920px; height:1080px; z-index:10;  animation: bganimation 300s linear infinite;pointer-events:none;  }
	
	/*返回首页*/
	.back{position:absolute;left: 70px;top: 70px;z-index: 100;cursor: pointer;}
	.back img{width: 80px;}

	 @keyframes bganimation {
          0%{
            background-position: 0% -100px;
          }
          50%{
            background-position: 100% -100px;
          }
          100%{
            background-position: 0% -100px;
          }
        }


}

@media only screen and (min-width: 1921px){
	 html {font-size: calc(100vw/1920); /*相当于是100px*/}
	.bg1,.bg2,.bg3{ width:1920rem; height:1080rem; margin: 0 auto; position: relative;}
	.bg1{ background:url(../img/bg1.png);background-size:1920rem 1080rem }
	.bg2{ background:url(../img/bg2.png);background-size:1920rem 1080rem }
	.bg3{ background:url(../img/bg3.png);background-size:1920rem 1080rem }

	/* .nav{   width:1200rem; height:381rem; position:absolute; top:330rem; left:450rem } */
	.nav{   width:1200rem; height:381rem; position:absolute; top:480rem; left:500rem }
	/* .nav img{ width:300rem; height:381rem; margin-right:70rem ;filter: drop-shadow(5rem 5rem 10rem  rgba(0,0,0,0.5)); } */
	.nav img{ width:240rem; height:304.8rem; margin-right:70rem;filter: drop-shadow(5rem 5rem 10rem  rgba(0,0,0,0.5));  }
	.nav img:nth-child(3n){ margin-right:0 }

	/* .an1,.an2{width:308rem; height:92rem; position:absolute; top:805rem } */
	.an1,.an2{width:308rem; height:92rem; position:absolute; top:855rem }

	.an1{ left:663rem; }
	.an2{ left:990rem}


	.an1 img,.an2 img{width:308rem; height:92rem }

	.di{ position:absolute; width:311rem; height:52rem ; left:805rem; top:966rem }
	.di img{width: 311rem; height: 52rem}

	/* .lvan1,.lvan2{ width:276rem; height:160rem; position: absolute;; top:422rem ;filter: drop-shadow(5rem 5rem 10rem  rgba(0,0,0,0.5));   } */
	.lvan1,.lvan2{ width:251.1rem; height:144rem; position: absolute;; top:481rem ;filter: drop-shadow(5rem 5rem 10rem  rgba(0,0,0,0.5));   }
	.lvan1{ left:683rem }
	.lvan2{ left:1010rem }
	.lvan1 img,.lvan2 img{  width:100%;   }


	/* .lanan1,.lanan2,.lanan3,.lanan4,.lanan5{ width:276rem; height:160rem; position:absolute;filter: drop-shadow(5rem 5rem 10rem  rgba(0,0,0,0.5));} */
	.lanan1,.lanan2,.lanan3,.lanan4,.lanan5,.lanan6{ width:251.1rem; height:144rem; position:absolute; filter: drop-shadow(5rem 5rem 10rem  rgba(0,0,0,0.5)); }
	.lanan1 img,.lanan2 img,.lanan3 img,.lanan4 img,.lanan5 img,.lanan6 img{width: 100%}
	/* .lanan1,.lanan2,.lanan3,.lanan4{ top:321rem } */
	.lanan1,.lanan2,.lanan3,.lanan4{ top:481rem }
	.lanan1{ left:383rem }
	.lanan2{ left:691rem}
	.lanan3{ left:999rem}
	.lanan4{ left:1307rem }
	/* .lanan5{ left:383rem; top:536rem } */
	.lanan5{ left:383rem; top:660rem }
	.lanan6{ left:691rem; top:660rem }

.clound{ position:absolute; left:0; top:0; background:url(../img/clound.png?1) no-repeat; width:1920rem; height:1080rem; z-index:10;  animation: bganimation 300s linear infinite;pointer-events:none; }
	
	/*返回首页*/
	.back{position:absolute;left: 70rem;top: 70rem;z-index: 100;cursor: pointer;}
	.back img{width: 80rem;}

@keyframes bganimation {
          0%{
            background-position: 0% -100rem;
          }
          50%{
            background-position: 100% -100rem;
          }
          100%{
            background-position: 0% -100rem;
          }
        }

}

/*无链接*/
.nav_jin{filter: grayscale(100%);cursor:no-drop;}