*{ padding:0px; margin:0}
body{ 
	color:#fff; 
}

.menu{ 
	height:80px;
	line-height: 80px;
	position:fixed;
	/*background:rgba(0,0,0,0.2);*/
	top:0px; 
	left:0; 
	z-index:998; 
	width:100%; 
}

.menu_center{
	width: 72%;
	height: 80px;
	margin: 0 auto;
}

.sitename{
	width: 40%;
	font-size: 26px;
	font-weight: 700;
	letter-spacing: 5px;
	color: #FFF;
}

.menu li{
	height: 80px;
	line-height: 80px;
	list-style:none; 
	float:left; 
	display:inline-block; 
	font:16px/42px "Microsoft Yahei";
}
.menu li a{
	width: 150px;
	color:#fff; 
	text-decoration:none; 
	text-align:center; 
	display:block; 
	padding:0px 15px;
	height: 80px;
	line-height: 80px;
	font-size: 17px;
}

/*.menu li.active{ 
	background:#F00;
}*/

.section1{
	background: linear-gradient(180deg, #eef8ff 0%, #d9edff 100%);
	background-size: 100% auto;
	/* -webkit-background-size: contain; */
    /* -o-background-size: contain; */
    /* background-position: top right; */
	/* width: 100%;
	height: 100%; */
	
}

.section1_left, .section1_right{
	width: 50%;
	height: 100%;
}

.section1_left{
	margin-top: 40px;
}

@media screen and (min-width: 1366px) {
	.section1_left{
		margin-top: 50px;
	}
}

@media screen and (min-width: 1440px) {
	.section1_left{
		margin-top: 60px;
	}
}

@media screen and (min-width: 1920px) {
	.section1_left{
		margin-top: 60px;
	}
}

@media screen and (min-width: 1921px) {
	.section1_left{
		margin-top: 60px;
	}
}
.logo_img img{
	width: 90%;
	max-width: 90%;
}

.desc_img{
	margin-top: 20px;
}

.desc_img img{
	width: 90%;
	max-width: 90%;
	height: auto;
}

.download{
    margin-top: 30px;
    position: absolute;
    width: 25%;
    text-align: center;
}


.download .ewm_area{
    width: 46%;
    height: auto;
    /* margin-left: 1%; */
}


.download .ewm_area .ewm_img{
	/*width: 95%;
	height: 96%;
	 background: url(../full_image/kuang.png) no-repeat top left;
	background-size: 100%;
	padding: 5px; */
}

.download .ewm_area .ewm_img img{
	width: 70%;
	height: 70%;
	padding: 2%;
    background-color: #fff;
}

.download .ewm_download{
/* 	width: 100%;
	height: 65px;
	margin-top: 20px;
	color: #e531db;
	font-size: 24px; */
    margin-bottom: 19%;
    /* margin-bottom: 10%; */
}

.ewm_download img{
	width: 100%;
    height: auto;
}



.section1_right{
	padding-top: 160px;
	text-align: left;
}
/* 
@media screen and (min-width: 1366px) {
	.section1_right{
		padding-top: 220px;
		text-align: left;
	}
}

@media screen and (min-width: 1440px) {
	.section1_right{
		padding-top: 320px;
		text-align: left;
	}
}

@media screen and (min-width: 1920px) {
	.section1_right{
		padding-top: 160px;
		text-align: left;
	}
}

@media screen and (min-width: 1921px) {
	.section1_right{
		padding-top: 250px;
		text-align: left;
	}
}
 */
.section1_right img{
	width: 100%;
	height: auto;
}

.section2{
	background: linear-gradient(180deg, #d9edff 0%, #eef8ff 100%);
	background-size: contain;
	-webkit-background-size: contain;
    -o-background-size: contain;
	/* height: 50% !important; */
	background-size: 100% 95% !important;

}

.section22{
	width: 100%  !important;
	background: linear-gradient(180deg, #d9edff 0%, #eef8ff 100%);
	background-size: contain;
	-webkit-background-size: contain;
    -o-background-size: contain;
	width: 100%;
	height: 100%;
	background-size: 100% auto !important;
}

.section2 .section2_left,.section2 .section2_right{
	width: 45%;
	height: 100%;
	color: #000;
	position: relative;
}


.section2 .section2_left img{
	/* width: 40%; */
	height: 78%;
    position: absolute;
    left: 45%;
    top: 10%;
}
.sel2content{
    position: absolute;
    width: 600px;
    /* top: 2%; */
}

.section2 .section2_right .company_name{
	margin-top: 40%;
	width: 70%;
	height: 60px;
	font-weight: 500;
	font-size: 2.2rem;
	overflow: hidden;
}



.section2 .section2_right .company_desc{
	width: 85%;
	line-height: 1.5rem;
	color:#2f4a75;
	letter-spacing: 2px;
}

.section2 .copyright{
	width: 100%;
    height: 30px;
    position: absolute;
    bottom: 10px;
    left: 0;
    font-size: 1rem;
    text-align: center;
    color: #2f4a75;
}

.section_center{
	width: 72%;
	height: 100%;
	margin: 0 auto;
}

.fl{
	float: left;
	/* text-align: center; */
}

.fr{
	float: right;
}
.clearboth{
	clear: both;
}

.mr_20{
	float:left;
}
/*
@media screen and (min-width: 1400px) {
	.mr_20{
		margin-right: 15%;
	}
}*/
/* 
@media screen and (min-width: 1366px) {
	.mr_20{
		margin-right: 2%;
	}
}

@media screen and (min-width: 1440px) {
	.mr_20{
		margin-right: 3%;
	}
}
@media screen and (min-width: 1920px) {
	.mr_20{
		margin-right: 15%;
	}
}

@media screen and (min-width: 1921px) {
	.mr_20{
		margin-right: 8%;
	}
} */

/* ===== 新增：首页应用名称与介绍 ===== */
.app_name{
	margin-top: 15px;
	font-size: 34px;
	font-weight: 700;
	color: #fff;
	letter-spacing: 4px;
	text-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.app_intro{
	margin-top: 12px;
	width: 70%;
	font-size: 14px;
	line-height: 1.8;
	color: #fff;
	letter-spacing: 1px;
	opacity: 0.92;
}

.ewm_tip{
	margin-top: 6px;
	font-size: 13px;
	color: #fff;
	text-align: center;
	letter-spacing: 2px;
}

/* ===== 通用：页面标题 ===== */
.page_title{
	position: relative;
	top: 8%;
	width: 100%;
	text-align: center;
	font-size: 36px;
	font-weight: 700;
	color: #fff;
	letter-spacing: 8px;
}
.page_title_dark{
	color: #2a3b5c;
}
.page_title::after{
	content: "";
	display: block;
	width: 80px;
	height: 4px;
	margin: 14px auto 0;
	background: #5aa7ff;
	border-radius: 2px;
}

/* ===== 产品展示 ===== */
.section2{
	background: #eef8ff;
}
.product_main{
	position: relative;
	top: 16%;
	width: 90%;
	margin: 0 auto;
}
.product_img{
	width: 40%;
	text-align: center;
}
.product_img img{
	max-width: 90%;
	height: auto;
	border-radius: 12px;
	box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}
.product_info{
	width: 55%;
	padding-top: 10px;
}
.product_name{
	font-size: 32px;
	font-weight: 700;
	color: #2a3b5c;
	letter-spacing: 3px;
}
.product_slogan{
	margin-top: 10px;
	font-size: 17px;
	color: #5aa7ff;
	letter-spacing: 2px;
}
.product_desc{
	margin-top: 16px;
	font-size: 14px;
	line-height: 1.9;
	color: #2f4a75;
	letter-spacing: 1px;
}
.feature_list{
	margin-top: 26px;
	list-style: none;
	overflow: hidden;
}
.feature_list li{
	float: left;
	width: 48%;
	margin: 0 2% 18px 0;
	padding: 16px 18px;
	background: #fff;
	border-radius: 10px;
	box-shadow: 0 2px 10px rgba(0,0,0,0.06);
	box-sizing: border-box;
}
.feature_icon{
	display: inline-block;
	font-size: 26px;
	vertical-align: middle;
}
.feature_name{
	display: inline-block;
	margin-left: 8px;
	font-size: 17px;
	font-weight: 600;
	color: #2a3b5c;
	vertical-align: middle;
}
.feature_desc{
	margin-top: 8px;
	font-size: 13px;
	color: #3a5278;
	line-height: 1.6;
}

/* ===== 关于我们 ===== */
.section3{
	background: #fff;
}
.about_box{
	position: relative;
	top: 6%;
	width: 72%;
	margin: 0 auto;
	text-align: center;
}
.about_box .company_name{
	font-size: 30px;
	font-weight: 700;
	color: #2a3b5c;
	letter-spacing: 3px;
}
.about_box .company_desc{
	margin-top: 18px;
	font-size: 15px;
	line-height: 2;
	color: #2f4a75;
	letter-spacing: 1px;
}
.about_box .company_extra{
	margin-top: 12px;
	font-size: 14px;
	line-height: 1.9;
	color: #3a5278;
	letter-spacing: 1px;
}

/* 核心优势 */
.advantage_row{
	position: relative;
	top: 17%;
	width: 84%;
	margin: 0 auto;
	overflow: hidden;
}
.advantage_item{
	float: left;
	width: 23%;
	margin: 0 1%;
	padding: 20px 16px;
	background: #eef8ff;
	border-radius: 12px;
	text-align: center;
	border-left: 4px solid #5aa7ff;
	box-sizing: border-box;
	transition: transform .3s ease, box-shadow .3s ease;
}
.advantage_item:hover{
	transform: translateY(-4px);
	box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}
.advantage_icon{
	font-size: 30px;
}
.advantage_name{
	margin-top: 10px;
	font-size: 16px;
	font-weight: 600;
	color: #2a3b5c;
}
.advantage_desc{
	margin-top: 6px;
	font-size: 12px;
	line-height: 1.6;
	color: #3a5278;
}

/* ===== 联系我们 ===== */
.section4{
	background: #eef8ff;
}
.contact_box{
	position: relative;
	top: 7%;
	width: 82%;
	margin: 0 auto;
	overflow: hidden;
}
.contact_item{
	float: left;
	width: 30%;
	margin: 0 1.6% 16px;
	padding: 22px 18px;
	background: #fff;
	border-radius: 12px;
	text-align: center;
	box-shadow: 0 2px 12px rgba(0,0,0,0.06);
	box-sizing: border-box;
	transition: transform .3s ease, box-shadow .3s ease;
}
.contact_item:hover{
	transform: translateY(-4px);
	box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.contact_icon{
	font-size: 30px;
}
.contact_label{
	margin-top: 10px;
	font-size: 13px;
	color: #3a5278;
	letter-spacing: 2px;
}
.contact_value{
	margin-top: 8px;
	font-size: 14px;
	font-weight: 600;
	color: #2a3b5c;
	word-break: break-all;
}

/* 商务合作 */
.coop_box{
	position: relative;
	top: 12%;
	width: 82%;
	margin: 0 auto;
	text-align: center;
}
.coop_title{
	font-size: 20px;
	font-weight: 700;
	color: #2a3b5c;
	letter-spacing: 4px;
}
.coop_title::after{
	content: "";
	display: block;
	width: 50px;
	height: 3px;
	margin: 8px auto 0;
	background: #5aa7ff;
	border-radius: 2px;
}
.coop_list{
	margin-top: 16px;
	overflow: hidden;
}
.coop_item{
	float: left;
	width: 22%;
	margin: 0 1.5%;
	padding: 18px 12px;
	background: #fff;
	border-radius: 10px;
	box-shadow: 0 2px 10px rgba(0,0,0,0.05);
	box-sizing: border-box;
	transition: transform .3s ease, box-shadow .3s ease;
}
.coop_item:hover{
	transform: translateY(-4px);
	box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}
.coop_icon{
	font-size: 26px;
}
.coop_name{
	margin-top: 8px;
	font-size: 15px;
	font-weight: 600;
	color: #2a3b5c;
}
.coop_desc{
	margin-top: 4px;
	font-size: 12px;
	color: #3a5278;
}
.coop_email{
	margin-top: 16px;
	font-size: 13px;
	color: #2f4a75;
	letter-spacing: 1px;
}
.coop_email a{
	color: #2f7be0;
	text-decoration: none;
	font-weight: 600;
}
.coop_email a:hover{
	color: #5aa7ff;
}

/* ===== 版权 ===== */
.copyright{
	width: 100%;
	height: 30px;
	position: absolute;
	bottom: 10px;
	left: 0;
	font-size: 13px;
	text-align: center;
	color: #2f4a75;
	letter-spacing: 1px;
}