/*
body {
	margin: 0
}

img {
	border: 0;
	width: 100%;
}

*{
	box-sizing: border-box
}
*/



.mask_bg {
	width: 100%;
	height: 100%;
	position: fixed;
	top: 0;
	left: 0;
	z-index: 13330;
	display: none;
	background: #000;
	opacity: 0;
	cursor: pointer;
	-webkit-animation: maskShow cubic-bezier(0.68, -0.55, 0.27, 1.55) 1s forwards;
	-o-animation: maskShow cubic-bezier(0.68, -0.55, 0.27, 1.55) 1s forwards;
	-ms-animation: maskShow cubic-bezier(0.68, -0.55, 0.27, 1.55) 1s forwards;
	animation: maskShow cubic-bezier(0.68, -0.55, 0.27, 1.55) 1s forwards;
}

@-webkit-keyframes maskShow {
	from {
		opacity: 0;
	}
	to {
		opacity: 0.7;
	}
}

@-o-keyframes maskShow {
	from {
		opacity: 0;
	}
	to {
		opacity: 0.7;
	}
}

@-ms-keyframes maskShow {
	from {
		opacity: 0;
	}
	to {
		opacity: 0.7;
	}
}

@keyframes maskShow {
	from {
		opacity: 0;
	}
	to {
		opacity: 0.7;
	}
}
@-webkit-keyframes introShow {
	from {
		opacity: 0;
		top: -100%;
	}
	to {
		opacity: 1;
		top: 50%;
	}
}

@-o-keyframes introShow {
	from {
		opacity: 0;
		top: -300px;
	}
	to {
		opacity: 1;
		top: 50%;
	}
}

@-ms-keyframes introShow {
	from {
		opacity: 0;
		top: -100%;
	}
	to {
		opacity: 1;
		top: 50%;
	}
}

@keyframes introShow {
	from {
		opacity: 0;
		top: -300px;
	}
	to {
		opacity: 1;
		top: 50%;
	}
}
.video_show {
	width:100%;
	height: 0;
	padding-bottom: 57%;
	position: fixed;
	left: 50%;
	top: -300px;
	transform: translate(-50%,-50%); 
	opacity: 0;
	z-index: 13331;
	display: none;
	-webkit-animation: introShow cubic-bezier(0.68, -0.55, 0.27, 1.55) 1.2s 0.5s forwards;
	-o-animation: introShow cubic-bezier(0.68, -0.55, 0.27, 1.55) 1.2s 0.5s forwards;
	-ms-animation: introShow cubic-bezier(0.68, -0.55, 0.27, 1.55) 1.2s 0.5s forwards;
	animation: introShow cubic-bezier(0.68, -0.55, 0.27, 1.55) 1.2s 0.5s forwards;
}


.video_show .show_intro{width: 100%;height: 100%;position: absolute;left: 0;padding:0 0%;position: absolute;left: 0;top: 0;}
.video_show iframe {
	display: block;
    width: 100%;
    height: 100%;
}