html {
	font-size: 50px;
}

@media screen and (min-width: 320px) {
	html {
		font-size: 21.33px;
	}
}

@media screen and (min-width: 360px) {
	html {
		font-size: 24px;
	}
}

@media screen and (min-width: 375px) {
	html {
		font-size: 25px;
	}
}

@media screen and (min-width: 384px) {
	html {
		font-size: 25.6px;
	}
}

@media screen and (min-width: 400px) {
	html {
		font-size: 26.66666667px;
	}
}

@media screen and (min-width: 411px) {
	html {
		font-size: 27.4px;
	}
}

@media screen and (min-width: 414px) {
	html {
		font-size: 27.6px;
	}
}

@media screen and (min-width: 424px) {
	html {
		font-size: 28.26666667px;
	}
}

@media screen and (min-width: 480px) {
	html {
		font-size: 32px;
	}
}

@media screen and (min-width: 540px) {
	html {
		font-size: 36px;
	}
}

@media screen and (min-width: 720px) {
	html {
		font-size: 48px;
	}
}

@media screen and (min-width: 750px) {
	html {
		font-size: 50px;
	}
}

/* *********************************************
                    基本默认值  
 ***********************************************/
* {
	margin: 0;
	padding: 0;
}
h1,
h2,
h3,
p {
	margin: 0;
	padding: 0;
}
body {
	font-family: "Source Han Sans CN";
	font-size: 0.32rem;
	color: #333333;
	background-color: #fff;
}

ul,
li {
	margin: 0;
	padding: 0;
	list-style: none;
}

a {
	color: #303133;
	text-decoration: none;
	cursor: pointer;
}

a:hover {
	text-decoration: none;
}

@media screen and (min-width: 1280px) {
	.container {
		width: 100%;
	}
}

/* *********************************************
                  banner
***********************************************/
header {
	display: flex;
	justify-content: center;
	width: 100%;
	height: 10rem !important;
	background: url(../img/default-bg-header.png) center no-repeat;
	background-size: 38.4rem 10rem;
}

.header-title {
	display: flex;
	flex-direction: column;
	justify-content: center;
	color: #ffffff;
	margin-right: 9rem;
}

.header-title .logo {
	display: flex;
}

.header-title .logo span {
	align-self: end;
	font-size: 0.32rem;
	letter-spacing: 2px;
	margin: 0 0 0.2rem 0.2rem;
	opacity: 0.6;
}

.header-title h1 {
	font-size: 0.72rem;
	font-weight: bold;
	margin-bottom: 0.2rem;
}

.header-title-describe {
	font-size: 0.28rem;
	line-height: 0.48rem;
	opacity: 0.6;
}

.header-title-describe::before {
	display: block;
	content: "";
	width: 1.8rem;
	height: 1px;
	background-color: #fff;
	opacity: 0.6;
	margin: 0.2rem 0;
}

.header-title-btn {
	width: 3.6rem;
	height: 1.08rem;
	border-radius: 0.7rem;
	background-color: #447dff;
	line-height: 1.08rem;
	text-align: center;
	cursor: pointer;
	margin-top: 0.6rem;
}

/* *********************************************
                     practice
***********************************************/
.practice {
	display: flex;
	flex-direction: column;
	justify-content: center;
	width: 100%;
	margin: 2.4rem 0;
}

.practice-title {
	align-self: center;
	text-align: center;
	color: #2b2b52;
}

.practice-title h2 {
	position: relative;
	font-size: 0.4rem;
	font-weight: bold;
	margin-top: 0.92rem;
}

.practice-title h2::before {
	position: absolute;
	top: -0.95rem;
	left: 50%;
	transform: translateX(-50%);
	content: "01";
	font-size: 1.32rem;
	font-weight: bold;
	color: #2b2b52;
	opacity: 0.05;
}

.practice-des {
	align-self: center;
	width: 10rem;
	text-align: center;
	font-size: 0.28rem;
	margin-top: 1rem;
}

.practice-des p:nth-child(1) {
	color: #666;
}

.practice-des p:nth-child(2) {
	color: #fe0f0f;
	margin-top: 0.6rem;
}

/* *********************************************
                     advantage
***********************************************/
.advantage {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	height: 7.68rem;
	background: url(../img/default-bg-advantage.png) center no-repeat;
	background-size: 38.4rem 7.68rem;
	margin-top: 2.4rem;
}

.advantage-title h2 {
	position: relative;
	font-size: 0.4rem;
	font-weight: bold;
	color: #ffffff;
	margin-top: 0.92rem;
}

.advantage-title h2::before {
	position: absolute;
	top: -0.95rem;
	left: 50%;
	transform: translateX(-50%);
	content: "02";
	font-size: 1.32rem;
	font-weight: bold;
	color: #ffffff;
	opacity: 0.05;
}

.advantage-list {
	display: flex;
	margin-top: 1rem;
}

.advantage-list-item {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	width: 3rem;
	height: 3.36rem;
	background-color: #ffffff;
	border-radius: 0 0 0.4rem 0;
	margin: 0 0.5rem;
}

.advantage-list-item p {
	position: relative;
	font-size: 0.32rem;
	font-weight: bold;
	color: #333;
	margin-bottom: 0.3rem;
	margin: 0 0 0.3rem 0.4rem;
}

.advantage-list-item p::before {
	display: block;
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	left: -0.52rem;
	content: "";
	width: 0.32rem;
	height: 0.32rem;
	border-radius: 50%;
	border: 0.08rem solid #447dff;
}

.advantage-list-item span {
	font-size: 0.28rem;
	color: #999;
}

/* *********************************************
                     choose
***********************************************/
.choose {
	display: flex;
	flex-direction: column;
	justify-content: center;
	width: 100%;
	margin-top: 2.4rem;
}

.choose-title {
	align-self: center;
	text-align: center;
	color: #2b2b52;
}

.choose-title h2 {
	position: relative;
	font-size: 0.4rem;
	font-weight: bold;
	margin-top: 0.92rem;
}

.choose-title h2::before {
	position: absolute;
	top: -0.95rem;
	left: 50%;
	transform: translateX(-50%);
	content: "03";
	font-size: 1.32rem;
	font-weight: bold;
	color: #2b2b52;
	opacity: 0.05;
}

.choose-list {
	display: flex;
	align-self: center;
	margin-top: 1.6rem;
}

.choose-list-item {
	display: flex;
	flex-direction: column;
	align-items: center;
	width: 4rem;
	margin: 0 1rem;
}

.choose-list-item img {
	width: 2rem;
	height: 2rem;
}

.choose-list-item p {
	font-size: 0.28rem;
	color: #333333;
	margin-top: 0.4rem;
}

/* *********************************************
                     content
***********************************************/
.content {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	width: 100%;
	background-color: #f5f8ff;
	padding: 1rem 0;
	box-sizing: border-box;
	margin-top: 2.4rem;
}

.content-title h2 {
	position: relative;
	font-size: 0.4rem;
	color: #2b2b52;
	font-weight: bold;
	margin-top: 0.92rem;
}

.content-title h2::before {
	position: absolute;
	top: -0.95rem;
	left: 50%;
	transform: translateX(-50%);
	content: "04";
	font-size: 1.32rem;
	font-weight: bold;
	color: #2b2b52;
	opacity: 0.05;
}

.content-list {
	display: flex;
	flex-direction: column;
}

.content-list-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	width: 9.4rem;
	margin-top: 1rem;
}

.reverse {
	flex-direction: row-reverse;
}

.content-list-item h3 {
	display: flex;
	justify-content: center;
	align-items: center;
	width: 3.9rem;
	height: 0.88rem;
	background-color: #5168ac;
	border-radius: 2rem;
	font-size: 0.28rem;
	color: #ffffff;
}

.content-list-item p {
	width: 4.5rem;
	font-size: 0.28rem;
	color: #666;
}

.rowd-content-btn {
	align-self: center;
	width: 4.8rem;
	height: 1.08rem;
	background-color: #ffffff;
	border: 1px solid #333333;
	line-height: 1.08rem;
	text-align: center;
	color: #333333;
	cursor: pointer;
	margin-top: 1.6rem;
}

/* *********************************************
                     footer
   ***********************************************/
footer {
	display: flex;
	align-items: center;
	width: 100%;
	height: 1.9rem !important;
	padding: 0 !important;
	background: #434343;
}

.footer {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	text-align: center;
	width: 100%;
	overflow: hidden;
}

.footer-right {
	line-height: 0.32rem;
	font-size: 0.28rem;
	color: #999999;
}

.footer-right a {
	color: #999999;
}

.footer-right a:hover {
	text-decoration: underline;
}

.footer-right_link {
	display: flex;
	align-items: center;
	margin-top: .2rem;
}

.police {
	display: flex;
	align-items: center;
	margin-left: .6rem;
}

.police p {
	margin-left: .1rem;
}

.back-top {
	position: fixed;
	bottom: 1rem;
	right: 4rem;
	cursor: pointer;
	z-index: 99;
}

.back-top img {
	width: 1rem;
	height: 1rem;
}

/* *********************************************
                     max-width: 1200px
***********************************************/
@media screen and (max-width: 1200px) {
	/* *********************************************
                     header
	***********************************************/
	header {
		height: 15.4rem !important;
		background: url(../img/phone-bg-header.png) center no-repeat;
		background-size: 15rem 15.4rem;
	}

	.header-title {
		margin-right: 0;
	}

	.header-title-describe {
		font-size: 0.48rem;
		line-height: 0.72rem;
		margin-top: 0.4rem;
	}

	.header-title-btn {
		align-self: center;
		width: 6rem;
		height: 1.6rem;
		border-radius: 0.8rem;
		line-height: 1.6rem;
		font-size: 0.56rem;
		margin-top: 1rem;
	}

	/* *********************************************
										practice
	***********************************************/
	.practice-title h2 {
		font-size: 0.72rem;
		margin-top: 1.8rem;
	}

	.practice-title h2::before {
		top: -1.9rem;
		left: 50%;
		font-size: 2.2rem;
	}

	.practice-des {
		width: 13rem;
		font-size: 0.56rem;
	}

	.practice-des p:nth-child(2) {
		margin-top: 0.8rem;
	}
	/* *********************************************
										advantage
	***********************************************/
	.advantage {
		height: 20.84rem;
		background: url(../img/phone-bg-advantage.png) center no-repeat;
		background-size: 15rem 20.84rem;
	}

	.advantage-title h2 {
		font-size: 0.72rem;
		margin-top: 1.8rem;
	}

	.advantage-title h2::before {
		top: -1.9rem;
		left: 50%;
		font-size: 2.2rem;
	}

	.advantage-list {
		display: flex;
		justify-content: center;
		flex-wrap: wrap;
		width: 15rem;
		margin-top: 1rem;
	}

	.advantage-list-item {
		width: 6rem;
		height: 6.72rem;
		margin: 0.2rem;
	}

	.advantage-list-item p {
		font-size: 0.64rem;
		margin-bottom: 0.3rem;
		margin: 0 0 0.3rem 0.4rem;
	}

	.advantage-list-item p::before {
		left: -1.04rem;
		width: 0.64rem;
		height: 0.64rem;
		border: 0.16rem solid #447dff;
	}

	.advantage-list-item span {
		font-size: 0.56rem;
	}
	/* *********************************************
                     choose
***********************************************/
	.choose-title h2 {
		font-size: 0.72rem;
		margin-top: 1.8rem;
	}

	.choose-title h2::before {
		top: -1.9rem;
		left: 50%;
		font-size: 2.2rem;
	}

	.choose-list {
		flex-direction: column;
	}

	.choose-list-item {
		width: 100%;
		margin: 1.6rem 0 0 0;
	}

	.choose-list-item img {
		width: 4rem;
		height: 4rem;
	}

	.choose-list-item p {
		font-size: 0.56rem;
		color: #333333;
	}

	/* *********************************************
                     content
   ***********************************************/
	.content-title h2 {
		font-size: 0.72rem;
		margin-top: 1.8rem;
	}
	
	.content-title h2::before {
		top: -1.9rem;
		left: 50%;
		font-size: 2.2rem;
	}
	
	.content-list {
		display: flex;
		flex-direction: column;
	}
	
	.content-list-item {
		display: flex;
		flex-direction: column;
		justify-content: center;
		align-items: center;
		width: 9rem;
		margin-top: 1.6rem;
	}
	
	.reverse {
		flex-direction: column;
	}
	
	.content-list-item h3 {
		width: 7.8rem;
		height: 1.76rem;
		font-size: 0.56rem;
	}
	
	.content-list-item p {
		width: 9rem;
		text-align: center;
		line-height: .84rem;
		font-size: 0.56rem;
		margin-top: 1rem;
	}

	.rowd-content-btn {
		align-self: center;
		width: 9.6rem;
		height: 1.6rem;
		line-height: 1.6rem;
		text-align: center;
		font-size: 0.6rem;
		color: #333333;
		cursor: pointer;
		margin-top: 1.6rem;
	}

	/* *********************************************
                     footer
	***********************************************/

	footer {
		height: 2.08rem !important;
	}

	.footer-right {
		display: flex;
		flex-direction: column;
		line-height: 0.72rem;
		font-size: 0.38rem;
	}

	.back-top {
		position: fixed;
		bottom: 1rem;
		right: 1rem;
	}

	.back-top img {
		width: 1.6rem;
		height: 1.6rem;
	}
}