* {
	padding: 0;
	margin: 0;
	list-style: none;
	scroll-behavior: smooth;
}

.app {
	display: none;
}

@media (max-width:1000px) {
	* {
		color: #FFFFFF;
		box-sizing: border-box;
		/* transition: all 0.2s; */
	}
	@font-face {
		font-family: Roboto-Bold;
		src: url("../fonts/Roboto-Bold.ttf");
	}

	@font-face {
		font-family: SourceHanSansCN;
		src: url("../fonts/SourceHanSansCN-Light.otf");
	}

	html,
	body {
		margin: 0;
		padding: 0;
		font-family: 'SourceHanSansCN', Roboto-Bold, Arial, Helvetica, sans-serif;
		font-size: 100%;
		background: #000000;
		-webkit-tap-highlight-color: transparent;
	}

	.box {
		display: none;
	}

	.app {
		display: block;
	}

	.app-home {
		position: fixed;
		top: 0;
		left: 0;
		width: 100%;
		display: flex;
		justify-content: space-between;
		align-items: center;
		padding: 5% 3.5%;
		z-index: 9999;
	}

	.app-logo {
		width: 25.2%;
		z-index: 9999;
		padding-top: 2px;
	}

	.app-logo img {
		max-width: 100%;
		display: block;
	}

	.app-menu {
		cursor: pointer;
		z-index: 9999;
		position: relative;
		width: 8%;
	}

	.app-menu img {
		max-width: 100%;
		transition: all 0.2s;
	}

	.app-menu .menu-img {
		display: block;
		opacity: 0;
		transition: all 0.2s;
	}

	.app-menu .menu-img.on {
		transform: rotate(180deg);
		opacity: 1;
	}

	.app-menu .menu2-img {
		position: absolute;
		left: 0;
		top: 32%;
		transition: all 0.2s;
	}

	.app-menu .menu2-img.on {
		transform: rotate(90deg);
		opacity: 0;
	}

	.app-menu-list {
		opacity: 0;
		display: none;
		transition: all 0.2s;
	}

	.app-menu-list.on {
		opacity: 1;
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		background: url(../images/app/menu-list-bg.jpg) no-repeat center;
		background-size: cover;
		height: 100vh;
		z-index: 999;
		display: flex;
		justify-content: center;
		align-items: center;
	}
	.app-menu-list>div{width: 86%;}

	.app-menu-list ul {
		transition: all 0.2s;
		width: 100%;
		height: 100%;
		display: flex;
		justify-content: center;
		align-items: center;
		flex-direction: column;
	}

	.app-menu-list li {
		width: 100%;
		text-align: center;
		border-bottom: 1px solid rgba(255, 255, 255, .2);
	}

	.app-menu-list li:first-child {
		border-top: 1px solid rgba(255, 255, 255, .2);
	}

	.app-menu-list li a {
		width: 100%;
		padding: 5% 0;
		display: block;
		text-decoration: none;
	}

	.app-menu-list li a p {
		font-family: Roboto-Bold;
		font-size: 2.25rem;
		line-height: 1.2;
	}

	.app-menu-list li a span {
		display: block;
		font-size: 1.375rem;
		color: #ca000f;
		line-height: 1.2;
	}

	.app-index-bg {
		height: 100vh;
		background: -webkit-linear-gradient(top, #3C0004 0%, #000000 50%, #3C0004 100%);
		background: -o-linear-gradient(top, #3C0004 0%, #000000 50%, #3C0004 100%);
		background: -moz-linear-gradient(top, #3C0004 0%, #000000 50%, #3C0004 100%);
		background: linear-gradient(top, #3C0004 0%, #000000 50%, #3C0004 100%);
		z-index: 99;
	}

	.app-index {
		background: url(../images/app/bg-logo.png) no-repeat center;
		background-size: auto 100%;
		height: 100%;
	}

	.app-index .logo-text {
		position: absolute;
		left: 0;
		top: 0;
		width: 100%;
		height: 100%;
		display: flex;
		justify-content: center;
		align-items: center;

	}

	.app-index .logo-text img {
		max-width: 50%;
		transition: all 3s;
		transform: scale(0);
		opacity: 0;
	}

	.app-index .logo-text img.on {
		animation: amplify 2s linear 1;
		animation-fill-mode: forwards;
		transform: scale(0);
		opacity: 1;
	}

	@-ms-keyframes amplify {
		0 {
			transform: scale(0);
			opacity: 0;
		}

		50% {
			transform: scale(1.3);
			opacity: 1;
		}

		100% {
			transform: scale(1);
			opacity: 1;
		}
	}

	@-webkit-keyframes amplify {
		0 {
			transform: scale(0);
			opacity: 0;
		}
		
		50% {
			transform: scale(1.3);
			opacity: 1;
		}
		
		100% {
			transform: scale(1);
			opacity: 1;
		}
	}

	@keyframes amplify {
		0 {
			transform: scale(0);
			opacity: 0;
		}
		
		50% {
			transform: scale(1.3);
			opacity: 1;
		}
		
		100% {
			transform: scale(1);
			opacity: 1;
		}
	}

	/*  */
	.app-bg {
		height: 300px;
		width: 100%;
		background: -webkit-linear-gradient(top, #3C0004 0%, #000000 100%);
		background: -o-linear-gradient(top, #3C0004 0%, #000000 100%);
		background: -moz-linear-gradient(top, #3C0004 0%, #000000 100%);
		background: linear-gradient(top, #3C0004 0%, #000000 100%);
	}

	/*  */
	.app-content-bg {
		background: #000000;
	}

	.app-content {
		transition: all 0s;
	}

	.app-content.on {
		background: url(../images/app/app-bg.png) no-repeat top center;
		background-attachment: fixed;
		background-size: auto 100%;
	}

	.bg-img img {
		width: 150%;
		margin: 0 auto;
	}

	.app-about {
		display: flex;
		justify-content: space-around;
		align-items: center;
		flex-direction: column;
		height: 100vh;
		margin: 0 auto;
		padding: 10% 10% 5%;
		transition: all 0s;
		
		
		background: url(../images/app/app-bg.png) no-repeat top center;
		background-size: auto 100%;
	}

	.app-about.on {
		background: none;
	}

	.app-title p {
		font-size: 9rem;
		font-family: Roboto-Bold;
		font-weight: bold;
		text-align: center;
		transform-origin: 50% 0%;
		transform: rotateX(90deg) skew(-30deg,0);
	}

	.app-title p b {
		display: block;
	}

	.app-title span {
		font-size: 3.5rem;
		color: #ca000f;
		display: block;
		text-align: center;
		transform-origin: 50% 0%;
		transform: rotateX(-90deg) skew(-30deg,0);
	}

	.app-title-on p {
		animation: overturn 0.5s linear 1;
		transform: rotateX(0) skew(0,0);
	}

	.app-title-on span {
		animation: overturn 0.5s linear 1;
		transform: rotateX(0) skew(0,0);
	}

	@-ms-keyframes overturn {
		0% {
			transform: rotateX(-90deg) skew(-30deg,0);
		}
		100% {
			transform: rotateX(0) skew(0,0);
		}
	}

	@-webkit-keyframes overturn {
		0% {
			transform: rotateX(-90deg) skew(-30deg,0);
		}
		100% {
			transform: rotateX(0) skew(0,0);
		}
	}

	@keyframes overturn {
		0% {
			transform: rotateX(-90deg) skew(-30deg,0);
		}
		100% {
			transform: rotateX(0) skew(0,0);
		}
	}

	.app-about .app-about-text p{width: 80%; margin: 0 auto;}
	
	.app-about .app-about-text p span {
		font-size: 1.4rem;
		line-height: 2.4rem;
	}

	/*  */
	.app-service {
		display: flex;
		justify-content: space-around;
		align-items: center;
		flex-direction: column;
		height: 100vh;
	}

	.app-service-title p {
		font-size: 5.875rem;
		font-family: Roboto-Bold;
		font-weight: bold;
		text-align: center;
		transform-origin:50% 0%;
		transform: rotateX(-90deg) skew(-30deg,0);
	}

	.app-service-title span {
		font-size: 2.5rem;
		color: #ca000f;
		display: block;
		text-align: center;
		transform-origin:50% 0%;
		transform: rotateX(-90deg) skew(-30deg,0);
	}

	.app-service-title-on p {
		animation: overturn 0.5s linear 1;
		transform: rotateX(0) skew(0,0);
	}

	.app-service-title-on span {
		animation: overturn 0.5s linear 1;
		transform: rotateX(0) skew(0,0);
	}

	.app-service-list {
		margin-top: 10rem;
	}
	
	.app-service-list ul{
		overflow: hidden;
	}
	
	.app-service-list li {
		margin-bottom: 0.8rem;
	}

	.app-service-list li img {
		width: 100%;
		display: block;
	}
	.app-service-list li:nth-child(2n-1){transform: translateX(-30%); transition: all 0.6s; opacity: 0;}
	.app-service-list li:nth-child(2n){transform: translateX(30%); transition: all 0.6s; opacity: 0;}
	.app-service-list li.on:nth-child(2n-1){transform: translateX(0); opacity: 1;}
	.app-service-list li.on:nth-child(2n){transform: translateX(0); opacity: 1;}
	
		
	.app-service2,
	.app-service3,
	.app-service4{
		margin-top: 30rem;
	}
	
	
	.app-video-list li{width: 100%; margin-top: 10px; padding: 0 2%;}
	.app-video-list li video{width: 100%;}
	
	
	.app-case{
		display: flex;
		justify-content: space-around;
		align-items: center;
		flex-direction: column;
		height: 100vh;
		margin: 0 auto;
		padding: 10% 0;
		transition: all 0s;
	}
	
	.app-case-list ul{
		display: flex;
		justify-content: space-around;
		flex-wrap: wrap;
		padding: 0 7%;
	}
	.app-case-list li{
		width: 48%;
		display: flex;
		align-items: center;
		justify-content: center;
		margin-bottom: 2%;
		border-radius: 10px;
		overflow: hidden;
	}
	
	.app-case-list li{transform: translateY(30%); transition: all 0.6s; opacity: 0;}
	.app-case-list li a{
		display: block; 
		width: 100%; 
		height: 100%;
		display: flex;
		align-items: center;
		justify-content: center;
		border-radius: 10px;
		background: #ffffff;
	}
	.app-case-list li.on{transform: translateY(0); opacity: 1;}
	
	.app-case-list li img{max-width: 100%;}
	
	
	
	.app-contact{
		display: flex;
		justify-content: space-around;
		align-items: center;
		flex-direction: column;
		height: 100vh;
		margin: 0 auto;
		padding: 10% 0;
		transition: all 0s;
		margin-top: 20rem;
	}
	.app-contact .app-contact-text>div{
		text-align: center; 
		font-size: 2.125rem;
		margin-top: 3.25rem;
	}
	.app-contact .app-contact-text>div span{
		display: block;
	}
	.app-contact .app-contact-text>div span img{
		display: inline-block; 
		width: 17%;
		transform: scale(0,0);
		opacity: 0;
		transition: all 0.8s;
	}
	.app-contact .app-contact-text div span img.on{transform: scale(1); opacity: 1; transform-origin: 50% 50%; }
	
	/*  */
	.actGotop {
	    position: fixed;
	    _position: absolute;
	    bottom: 3rem;
	    right: 1rem;
	    width: 3rem;
	    height: 3rem;
	    display: none;
	    z-index: 9999;
	}
	
	.actGotop a {
	    width: 100%;
	    height: 100%;
	    line-height: 3rem;
	    border-radius: 100%;
	    color: #fff;
	    text-align: center;
	    display: inline-block;
	    background-color: #6A0003;
		font-size: 1.5rem;
		text-decoration: none;
	}
	
	.actGotop a:hover{background-color:#970003;}
}


@media (max-width:1000px) {
	.app-service-title p {
		font-size: 4.75rem;
	}
}

@media (max-width:750px) {

	.app-logo img,
	.app-menu img {
		width: 100%;
	}

	.app-bg {
		height: 200px;
	}

	.app-about {
		padding: 15% 10% 5%;
	}

	.app-title p {
		font-size: 7rem;
	}

	.app-service-title p {
		font-size: 3.875rem;
	}

	.app-content.on {
		background-size: cover;
	}
	
	.app-about .app-about-text p{width: 100%; }
	
	.app-service2,
	.app-service3,
	.app-service4 {
		margin-top: 20rem;
	}
	.app-contact .app-contact-text>div {
	    font-size: 2rem;
	    margin-top: 3rem;
	}
	.app-contact .app-contact-text>div span img{
		display: inline-block; 
		width: 15%;
	}
}

@media (max-width:650px) {

	html,
	body {
		font-size: 87.5%;
	}

	.app-title p {
		font-size: 6rem;
	}

	.app-title span {
		font-size: 3.25rem;
	}

	.app-service-title p {
		font-size: 3.875rem;
	}

	.app-service-title span {
		font-size: 2.25rem;
	}
}

@media (max-width:550px) {

	html,
	body {
		font-size: 75%;
	}


	.app-title p {
		font-size: 5rem;
	}

	.app-title span {
		font-size: 2.625rem;
	}

	.app-service-title p {
		font-size: 2.875rem;
	}

	.app-service-title span {
		font-size: 2rem;
	}

}


@media (max-width:450px) {

	html,
	body {
		font-size: 62.5%;
	}

	.app-about {
		padding: 20% 10% 5%;
	}

	.app-title p {
		font-size: 5rem;
	}

	html,
	body,
	.app,
	.app-home {
		min-width: 320px;
	}
	
	.app-contact{margin-top: 15rem; padding:17% 0 5%;}
	.app-contact .app-contact-text>div {
	    font-size: 1.75rem;
	    margin-top: 2rem;
	}
	.app-contact .app-contact-text>div span img{
		display: inline-block; 
		width: 14%;
	}
}