.top-img-box img{
	max-width: 100%;
	display: block;
}
.object-fit{
	object-fit: contain;
	display: block;
}
.top-span img{
		width: 100%;
		height: 100%;
		display: block;
	}
.fisrt-right-every:last-child{
	border-bottom: none;
}
.layer-box{
	position: fixed;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.6);
	display: none;
	
}
.layer{
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
}
.layer-box img{
	object-fit: contain;
	max-width: 100%;
	max-height: 100%;
	display: block;
	margin: 0 auto;
}

/* 当屏幕宽度大于或等于1200像素时，增加字体大小 */
@media (min-width: 768px) {
	.pc-block{
		display: block;
	}
	.mv-block{
		display: none;
	}
	.top-box{
		background: #30A5EB;
	}
	.top{
		width: 80%;
		margin: 0 auto;
		height: 120px;
	}
	.top-span{
		width: 20%;
		height: 70px;
		background: rgba(255, 255, 255, 0.2);
	}
	.title-img{
		display: block;
		margin: 0 auto 50px;
		width: 50%;
		height: 60px;
		object-fit: contain;
	}
	.first-box{
		display: flex;
	}
	.first-img{
		width: 50%;
		max-height: 600px;
	}
	.fisrt-right{
		width: 50%;
		box-sizing: border-box;
		display: flex;
		flex-direction: column;
		border: 1px solid #1E5CC1;
		border-left: none;
	}
	.fisrt-right-every{
		flex: 1;
		border-bottom: 1px solid #1E5CC1;
		padding: 2% 6%;
	}
	.fisrt-right-one{
		font-size: 28px;
		font-weight: 500;
		line-height: 40px;
	}
	.fisrt-right-title{
		font-size: 28px;
		font-weight: 500;
		margin-bottom: 10px;
	}
	.fisrt-right-titletwo{
		font-size: 18px;
	}
	.contet-out-box{
		width: 80%;
		margin: 100px auto;
	}
	.content-box{
		margin-top:50px;
	}
	.content-top{
		background: #1E5CC1;
		height: 128px;
	}
	.content-top img{
		width: 28%;
		height: 50px;
		object-fit: contain;
	}
	.content-font{
		padding: 4%;
		box-sizing: border-box;
		display: flex;
		justify-content: space-between;
		align-items: flex-end;
	}
	.content-font-box{
		width: 70%;
	}
	.content-font-code{
		width: 190px;
		height: 190px;
	}
	.content-word{
		padding: 2%;
		border-right: 1px solid #1E5CC1;
		border-bottom: 1px solid #1E5CC1;
		width: 25%;
		box-sizing: border-box;
		cursor: pointer;
	}
	.content-word:nth-child(4n){
		border-right: none;
	}
	.content-word img{
		width: 100%;
		object-fit: contain;
		display: block;
		max-height: 340px;
	}
	.margin-top-100{
		margin-top: 100px;
	}
}

/* 当窗口宽度在600像素到768像素之间时 */
@media (min-width: 768px) and (max-width: 1200px) {
  body {
    width: 1200px;
  }
}


@media (max-width: 768px) {
	.pc-block{
		display: none;
	}
	.mv-block{
		display: block;
	}
	.top-box{
		background: #30A5EB;
		padding: 0 20px;
		height: 60px;
	}
	.top{
		height: 60px;
	}
	.top-span{
		width: 30%;
		height: 30px;
		background: rgba(255, 255, 255, 0.2);
	}
	.title-img{
		display: block;
		margin: 0 auto 50px;
		width: 100%;
		height: 30px;
		object-fit: contain;
	}
	.first-img{
		width: 100%;
		max-height: 600px;
		display: block;
	}
	.fisrt-right{
		box-sizing: border-box;
		border: 1px solid #1E5CC1;
	}
	.fisrt-right-every{
		border-bottom: 1px solid #1E5CC1;
		padding: 2% 6%;
	}
	.fisrt-right-one{
		font-size: 18px;
		font-weight: 500;
		line-height: 30px;
	}
	.fisrt-right-title{
		font-size: 18px;
		font-weight: 500;
		margin-bottom: 10px;
	}
	.fisrt-right-titletwo{
		font-size: 14px;
	}
	.contet-out-box{
		padding: 15px;
	}
	
	.content-top{
		background: #1E5CC1;
		height:60px;
	}
	.content-top img{
		width: 60%;
		height: 20px;
		object-fit: contain;
	}
	.content-font{
		padding: 4%;
		box-sizing: border-box;
	}
	.content-font-code{
		width: 160px;
		height: 160px;
		display: block;
		margin: 30px auto 0;
	}
	.content-word{
		padding: 2% 2% 3%;
		border-right: 1px solid #1E5CC1;
		border-bottom: 1px solid #1E5CC1;
		width: 50%;
		box-sizing: border-box;
		cursor: pointer;
	}
	.content-word:nth-child(2n){
		border-right: none;
	}
	.content-word img{
		width: 100%;
		object-fit: contain;
		display: block;
		max-height: 340px;
	}
	
	.font-20{
		font-size: 18px !important;
	}
	.font-22{
		font-size: 20px !important;
	}
	.font-18{
		font-size: 16px !important;
	}
	.font-16{
		font-size: 14px !important;
	}
	
	.margin-top-100{
		margin-top: 15px;
	}
}