* {
  box-sizing: border-box;
}

.col-1 {width: 8.33%;}
.col-2 {width: 16.66%;}
.col-3 {width: 25%;}
.col-4 {width: 33.33%;}
.col-5 {width: 41.66%;}
.col-6 {width: 50%;}
.col-7 {width: 58.33%;}
.col-8 {width: 66.66%;}
.col-9 {width: 75%;}
.col-10 {width: 83.33%;}
.col-11 {width: 91.66%;}
.col-12 {width: 100%;}


body {

  position: relative;
  margin: 0;
  font-family: Verdana,"Trebuchet MS";
  font-size: 15.5px;


}

#container {
	align:center;
}



#header {
 z-index:99;
 display: flex;
 margin: auto;
 align-items: center;
 font-family: verdana;
 font-size: 14px;
 height: 120px;
 margin-left: 70px;
 margin-right: 70px;




}

.img_logo{
 height: 85px;

}

.iso_logo{
 height: 65px;
 margin-left:18px;
}


#mobile_menu_button{
cursor: pointer;
 margin-left: auto;
 display: none;
}


#mobile_menu_button>img{
 width: 40px;
}





#pc_menu{
 margin-left:auto;
 display: flex;
}

#pc_menu>a>div{

 color:rgb(0,0,0);
 text-decoration: none;
 padding: 10px;
 line-height:30px;
 transition: background-color 0.4s, color 0.4s;
}

a{
text-decoration: none;
color: black;
}

#pc_menu>a>div:hover{
  background-color:rgb(0,0,150);
  color:rgb(255,255,255);
}

#pc_menu>a>div:hover a{
  color:rgb(255,255,255);
}


#mobile_menu{
	position: absolute;
	z-index: 100;
	width: 70%;
	height: 0;
	display: flex;
	visibility: hidden;
	overflow: hidden;
	background: white;
	flex-direction: column;
	left: 0;
	right: 0;
	margin: auto;
	font-size: 15px;
	border-top: 5px solid rgb(1,1,189);
}


.mobile_menu_scrolldown{
  animation-name: scrolldown;
  animation-duration: 0.7s;
  animation-fill-mode: forwards;
  animation-timing-function: ease;
}

@keyframes scrolldown {
  from {
	 height:0%;
	 visibility: hidden;}
  to {
	height:16%;
	visibility: visible;}
}

.mobile_menu_srollup{
  animation-name: scrollup;
  animation-duration: 0.2s;
  animation-fill-mode: forwards;
  animation-timing-function: ease;
}

@keyframes scrollup {
  from {
	 height:12%;
	 visibility: visible;
	 }
  to {
	height:0%;
	visibility: hidden;
	}
}


#mobile_menu>a>div{
	display : hidden;
	padding: 20px;
	border-bottom: 1px solid rgb(240,240,240);
}

#mobile_menu>a>div:hover{
	color: rgb(0,0,160);
}



#banner{
 display:flex;

 z-index:-1;
 background-image: url("picture/banner 7.jpg");
 background-repeat: no-repeat;
 background-color: white;
 background-size: cover;
 background-position: center;
 width:100%;
 height:620px;
 justify-content: center;
}



#gradient{
 display:flex;
 justify-content: center;
 width:100%;

 background-image: linear-gradient(to top, rgba(255,255,255,1),
rgba(255,255,255,0), rgba(255,255,255,0), rgba(255,255,255,0), rgba(255,255,255,0),
rgba(255,255,255,0), rgba(255,255,255,0), rgba(255,255,255,0), rgba(255,255,255,0));
}

@font-face {
   font-family: swis721 cn bt bold;
   src: url(swis721-cn-bt-bold_0.ttf);
}

#text{

 margin-left: 70px;
 margin-right: 70px;
 display:flex;
 align-items: center;
 font-size: 70px;
 font-family: swis721 cn bt bold;
 color: rgb(255,255,255);
 text-align: center;
 text-shadow: 0 0 13px rgb(0,0,0);
 animation: pop 2s;
 animation-timing-function: ease;
}


@keyframes pop {


  from {
	 transform: translate(0,-60px);
	 opacity:0;}
  to {
	 transform: translate(0, 0px);
	 opacity:1;
	}


}






#content{
 display:flex;
 margin-top: 30px;
 margin-left: 90px;
 margin-right: 90px;

}

.content_iso_logo{
width: 40%;
margin-left:auto;
}

.iso_cert{
width: 100%;
margin-left:auto;
}

#content>#left{
 background-image: url("picture/iso_cert.jpg");
 background-repeat: no-repeat;
 background-color: white;
 background-size: cover;
 height:800px;
 flex: 120%;
 
}

#content>#right{
 line-height: 1.5;
 margin: 25px;
}

h1{
font-family: swis721 cn bt bold;
color: rgb(0,0,160);
}

h1{
color: rgb(0,0,160);
}

 #bottom_content{
 display:flex;
 align-items: center;
 margin-top:70px;
 margin-left: 90px;
 margin-right: 90px;
 }
 

 #bottom_content>#left{
 background: url("picture/bottom_pic.jpg");
 background-repeat: no-repeat;
 background-size: 100% 100%;
 width: 50%;
 height: 230px;
  transform: translate(15px,0);
}

 #bottom_content>#right{
 display:flex;
 flex-direction: column;
 align-items: center;
 justify-content: center;
 background-color: rgb(0,0,160);
 font-size: 28px;
 font-weight: 600;
 font-family: swis721 cn bt bold;
 color:white;
 text-align: center;
 width: 50%;
 height: 230px;
 transform: translate(-15px,30px);
}

#call_us{
 transform: translate(0,10px);
 font-size: 24px;
 color: white;
 letter-spacing: 2px;
 padding: 5px;
 background: rgb(150,150,150);
 width: 120%;

}

#call_us:hover {
 background: rgb(255,255,255);
 color: rgb(0,0,150);

 }






#footer{
 display: flex;
 margin-top: 50px;
 align-items: center;
 font-family: verdana;
 font-size: 12px;
 height: 150px;
 padding-left: 90px;
 padding-right: 90px;

}

#footer>#footer_menu{
 display: flex;
}

#footer_menu>div{
 color:rgb(0,0,0);
 text-decoration: none;
 text-align:center;
 margin-right: 20px;
 line-height:30px;
}

#footer_menu>div:hover a{
 color: rgb(0,0,150);
}

#footer_text{
margin-left: auto;
 text-align:center;

}






@media only screen and (max-width: 500px){
	
	#header{
	 height: 90px;
     margin-left:20px;
	 margin-right:20px;
	}

	.img_logo{
	 height: 65px;
	}

	.iso_logo{
	 height: 45px;
 	 margin-left:10px;
	}
		
	#mobile_menu_button{
	 margin-left: auto;
	 margin-right: -5px;
	}

	#mobile_menu_button>img{
	 width: 35px;
	}
	
	#banner{
	 background-position: center;
	 background-size: 700px;
	 height: 350px;
	}

	#gradient{
	 height: 350px;
	}

	@keyframes pop {
	  from {
		 transform: translate(0,10px);
		 opacity:0;}
	  to {
		 transform: translate(0,0px);
		 opacity:1;
		}
	}
	
	#text{
	 font-size: 30px;
	}
	
	#content{
     margin-left:15px;
	 margin-right:15px;
	 margin-top: 25px;
	 margin-bottom: 55px;
	 flex-wrap: wrap;
	 flex-flow: column;
	 flex-direction: column-reverse;
	 height: 120vh;
	}

	#content>#left{
	 background-image: url("picture/iso_cert.jpg");
	 background-repeat: no-repeat;
	 background-color: white;
	 background-position: center;
	 background-size: cover;
	 flex: 100%;
	 }
	
	#content>#right{
	 font-size: 15px;
	 margin: 0px;
	}
	
	.content_iso_logo{
	width: 90%;
	margin-left:auto;
	}

	#bottom_content{
	 margin-top:0px;
	 margin-left: 10px;
	 margin-right: 10px;
     flex-flow: column;
	 }

	 #bottom_content>#left{
	  width: 100%;
	  height: 150px;
	  transform: translate(0,0);
	}

	 #bottom_content>#right{
	 display:flex;
	 flex-direction: column;
	 padding: 5px;
	 font-size: 18px;
	 font-weight: 600;
	 width: 100%;
	 height: 150px;
	 transform: translate(0px,0px);
	}
	


	#call_us{
	 transform: translate(0,5px);
	 font-size: 18px;
	 letter-spacing: 2px;
	 padding: 5px;
	 width: 100%;
	}
	
	#footer{
	 flex-flow:column;
	 height: 300px;
	  padding-left: 0px;
	  padding-right: 0px;
	}

	#footer_menu{
	 flex-flow:column;
	 margin-top: 30px;
	 font-size: 15px;
	}

	#footer_text{
	 margin: auto;
	 margin-top: 30px;
	}

}



@media screen and (min-width: 768px) and (orientation: portrait){

	#header{
	margin-left: 70px;
	margin-right: 70px;
	}
	
	@keyframes scrolldown {
	  from {
		 height:0%;
		 visibility: hidden;}
	  to {
		height:18%;
		visibility: visible;}
	}
	
	#banner{
	 background-position: center;
	 background-size: cover;
	 height: 400px;
	}

	#gradient{
	 height: 400px;
	}

	#text{
	 font-size: 35px;
	 margin-left: 50px;
	 margin-right: 50px;
	}

	#content{
	 margin-top:25px;
	 margin-left: 40px;
	 margin-right: 40px;
	}

	#content>#left{
	 background-position: top;
	 background-size: 100%;
	 height: 550px;
	 }
	
	#content>#right{
	 margin:15px;
	 font-size: 13px;
	}
	
	.content_iso_logo{
	width: 50%;
	margin-left:auto;
	}


	#bottom_content{
	 display:flex;
	 align-items: center;
	 margin-top:40px;
	 margin-left: 40px;
	 margin-right: 40px;
	}

	#bottom_content>#left{
	  height: 150px;
	}


	#bottom_content>#right{
	 padding: 5px;
	 font-size: 23px;
	 font-weight: 600;
	 height: 150px;
	}

	#call_us{
	 font-size: 20px;
	 letter-spacing: 2px;
	 width: 100%;
	}

	#footer{
	 flex-flow:column;
	}

	#footer_menu{
	 margin-top: 30px;
	}

	#footer_text{
	 margin: auto;
	 margin-top: 30px;
	}
}


@media screen and (min-width: 550px) and (max-width: 900px) and (orientation: landscape){
	#header {
	 margin: auto;
	 align-items: center;
	 font-size: 14px;
	 height: 100px;
	 margin-left: 40px;
	 margin-right: 40px;
	}

	.img_logo{
	 height: 75px;
	}

	.iso_logo{
	 height: 55px;
	 margin-left:18px;
	}

	#mobile_menu>a>div{
		padding: 15px;
		border-bottom: 1px solid rgb(240,240,240);
	}
	
	#banner{
	 background-position: center;
	 background-size: cover;
	 height: 400px;
	}

	#text{
	 font-size: 35px;
	 margin-left: 50px;
	 margin-right: 50px;
	}
	
	#content{
     margin-left:20px;
	 margin-right:20px;
	 margin-top: 0px;
	 margin-bottom: 25px;
	 }

	#content>#left{
	 background-image: url("picture/iso_cert.jpg");
	 background-repeat: no-repeat;
	 background-color: white;
	 background-position: top;
	 background-size: 100%;
	 height: 550px;
	 }
	
	#content>#right{
	 font-size: 13px;
	 margin: 0px;
	}
	
	.content_iso_logo{
	width: 30%;
	margin-left:auto;
	}

	.iso_cert{
	width: 100%;
	margin-left:auto;
	}

	
	#bottom_content{
     margin-top: 20px;
	 margin-left: 40px;
	 margin-right: 40px;
	}

	#bottom_content>#left{
     width: 100%;
	 height: 150px;
	}

	 #bottom_content>#right{
	 padding: 10px;
	 font-size: 21px;
	 font-weight: 600;
	 width: 100%;
	 height: 150px;
	}

	#call_us{
	 font-size: 20px;
	 letter-spacing: 2px;
	 width: 100%;
	}

	#footer{
	 margin-top: 30px;
	 font-size: 9px;
	 height: 100px;
	 padding-left: 40px;
	 padding-right: 40px;

	}

	#footer_menu>div{
	 cursor: pointer;
	 color:rgb(0,0,0);
	 text-decoration: none;
	 text-align:center;
	 margin-right: 15px;
	 line-height:30px;
	}

	#footer_text{
	 margin-left: auto;
	 text-align: center;
	}



}



@media screen and (min-width: 1024px) and (max-width: 1200px) and (orientation: landscape){

	#pc_menu{
	 font-size: 12px;
	}

		#banner{
	 background-position: center;
	 background-size: cover;
	 height: 500px;
	}

	#gradient{
	 height: 501px;
	}

	#text{
	 font-size: 45px;
	 margin-left: 50px;
	 margin-right: 50px;
	}
	
	#content{
     margin-left:40px;
	 margin-right:40px;
	 margin-top: 20px;
	}
	
	#content>#left{
	 background-image: url("picture/iso_cert.jpg");
	 background-repeat: no-repeat;
	 background-color: white;
	 background-position: top;
	 background-size: 90%;
	 height: 700px;
	 }
	
	#content>#right{
	 font-size: 13px;
	 margin: 0px;
	}
	
	#bottom_content{
     margin-top: 20px;
	 margin-left: 50px;
	 margin-right: 50px;
	}

	#bottom_content>#left{
     width: 100%;
	 height: 200px;
	}
	
	#bottom_content>#right{
	 padding: 10px;
	 font-size: 21px;
	 font-weight: 600;
	 width: 100%;
	 height: 200px;
	}

	

}


@media only screen and (max-width: 999px){


	#mobile_menu_button{
	 display: inline;
	}

	#pc_menu{
	 display: none;
	}

}

@media only screen and (max-width:500px){


}