body{background: #f0f3f9; padding: 0; margin: 0;}
/**/
*{margin:0;padding:0;box-sizing:border-box;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
body{background-color:#f7f7f7;color:#333}
a{text-decoration: none; color: #333;}
a:hover{color:#00a9ff}
.flex{display: flex;}
.flex-b{display:flex;justify-content:space-between;align-items:center;}
/**/
.main-w{width: 100%; margin: 0 auto; max-width: 1200px;}
.main-container{width: 100%; margin: 0 auto;}
/**/
.main-header{width: 100%; border-bottom: 1px solid #e5e5e5;}
.main-header .header-box{padding: 25px 0 20px;}
.main-header .header-box .logo{height: 40px; line-height: 40px;}
.main-header .header-box .logo img{height:40px; margin-right:5px;}
.main-header .header-box .logo h1{font-size:20px; font-weight:normal; color:#222; font-weight: bold;}
.main-header .header-box .nav{}
.main-header .header-box .nav a{color:#333; font-size:16px; margin-left: 30px;}
.main-header .header-box .nav a:hover{color:#00a9ff}
/**/
.main-content{margin: 50px auto 0; overflow: hidden;}
.main-content .left-section{float: left; width: 40%;padding-top: 5px;}
.main-content .left-section h2{font-size:28px;margin-bottom:10px;color: #000;font-weight:bold;}
.main-content .left-section h3{font-size:16px;margin-bottom:20px;color: #000;font-weight:normal;}
.main-content .left-section p{font-size:14px;line-height:1.6;margin-bottom:15px;color:#666}
.main-content .left-section .btn{display:inline-block;padding:12px 24px;background-color:#00a9ff; color:white; border-radius:4px;font-size:16px;transition:background-color 0.3s}
.main-content .left-section .btn:hover{opacity: 0.9;}
/**/
.main-content .left-section .qr-code{margin-top:30px;}
.main-content .left-section .qr-code .code-box{display: inline-block; padding: 5px 5px; margin-bottom: 20px; background: #fff;}
.main-content .left-section .qr-code .code-box img{width:180px; height:180px; width: 100%;}
.main-content .left-section .qr-code .code-txt{width: 100%; overflow: hidden; font-size:14px;color:#999;margin-bottom: 8px}
.main-content .left-section .qr-code .code-txt .txt-item{float: left; margin-right: 20px; position: relative;}
.main-content .left-section .qr-code .code-txt .txt-item:hover{color:#00a9ff;}
.main-content .left-section .qr-code .code-txt .txt-item:before{content: ''; display: block; width: 1px; height: 10px; background: #999; position: absolute; right: -10px; top: 6px;}
.main-content .left-section .qr-code .code-txt .txt-item:last-child:before{display: none;}
/**/
.main-content .right-section{width: 60%; float: right;}
.main-content .right-section .phone-mockup{padding-top: 100px; position:relative; overflow: hidden;}
.main-content .right-section .phone-mockup img{width:85%;float: right;}
/**/
.main-footer{width: 100%; border-top: 1px solid #e5e5e5; position: fixed; left: 0; bottom: 0;}
.main-footer .footer-box{height: 50px; line-height: 50px; text-align: center; color: rgba(0, 0, 0, 0.3); font-size:14px; font-weight: 400;}
.main-footer .footer-box a{color: rgba(0, 0, 0, 0.3);}
.main-footer .footer-box a:hover{color:#00a9ff;}