* {
        margin: 0;
        padding: 0;
    }
    
    .w {
        width: 1200px;
        margin: auto;
    }
    
    body {
		font-family: 'Times New Roman', "Microsoft YaHei";
        background-color: #f3f5f7;
        height: 20vh;
        position: relative;
    }
    
    li {
        list-style: none;
    }
    
    a {
        text-decoration: none;
    }
    
    .clearfix:before,
    .clearfix:after {
        content: "";
        display: table
    }
    
    .clearfix::after {
        clear: both;
    }
    
    .clearfix {
        *zoom: 1;
    }
    
    .header {
        height: 42px;
        /* 此处会层叠w里面的margin */
        margin: 40px auto;
    }
    
    .logo {
        float: left;
        width: 198px;
        height: 42px;
    }
    
    .nav {
        float: left;
        margin-top: 15px;
        margin-left: 60px;
    }
    
    .nav ul li {
        float: left;
        margin: 0 15px;
    }
    
    .nav ul li a {
        display: block;
        height: 42px;
        padding: 0 10px;
        line-height: 42px;
        font-size: 18px;
        color: #050505;
    }
    
    .nav ul li a:hover {
        border-bottom: 2px solid #00a4ff;
    }
    /* search 搜索模块 */
    
    .search {
        float: left;
        width: 412px;
        height: 42px;
        background-color: skyblue;
        margin-top: 15px;
        margin-left: 70px;
    }
    
    .search input {
        float: left;
        width: 345px;
        height: 40px;
        border: 1px solid #00a4ff;
        border-right: 0;
        color: #bfbfbf;
        font-size: 14px;
        padding-left: 15px;
    }
    
    .search button {
        float: left;
        width: 50px;
        height: 42px;
        /* 按钮 button 默认有个边框，需要我们手动去掉 */
        border: 0;
        background: url(../images/button.png);
    }
    
    .user {
        float: right;
		height: 42px;
        line-height: 42px;
        margin-top: 15px;
        margin-right: 30px;
        font-size: 14px;
        color: #666;
    }
    /* 图标与文字对齐 */
    
    .user img {
        vertical-align: middle;
    }
    /* banner 区域 */
    
    .banner {
        height: 421px;
        background-color: #1c036c;
    }
    
    .banner .w {
        height: 421px;
        background: url(../images/banner3.png) no-repeat top center;
		-webkit-background-size: cover;
        -o-background-size: cover;                
        background-size: cover;
    }
    .goods {
        height: 60px;
        background-color: #fff;
        margin-top: 10px;
        box-shadow: 0 2px 3px 3px rgba(0, 0, 0, 0.1);
        /* 行高会继承，继承给三个孩子 */
        line-height: 60px;
    }
    
    .goods h3 {
        float: left;
        margin-left: 30px;
        font-size: 16px;
        color: #00a4ff;
    }
    
    .goods ul {
        float: left;
        margin-left: 30px;
    }
    
    .goods ul li {
        float: left;
    }
    
    .goods ul li a {
        padding: 0 30px;
        font-size: 16px;
        color: #050505;
        border-left: 1px solid #ccc;
    }
    
    .goods .mod {
        float: right;
        margin-right: 30px;
        font-size: 14px;
        color: #00a4ff;
    }
    
    .box {
        margin-top: 30px;
    }
    
    .box-hd {
        height: 45px;
    }
    
    .box-hd h3 {
        float: left;
        font-size: 20px;
        color: #494949;
    }
    
    .box-hd a {
        float: right;
        font-size: 12px;
        color: #a5a5a5;
        margin-top: 10px;
        margin-right: 30px;
    }
    /* 把 li 的父亲 ul 修改的足够宽，一行能装下五个盒子就不会换行了 */
    .box-bd1 ul {
        width: 1225px;
    }
    
    .box-bd1 ul li {
        float: left;
        width: 1200px;
        height: 500px;
        background-color: #fff;
        margin-right: 15px;
        margin-bottom: 15px;
    }
    
    .box-bd1 ul li img {
        heigth: 100%;
    }
    
    .box-bd1 ul li h4 {
		text-align: center;
        margin: 20px 20px 20px 25px;
        font-size: 36px;
        color: #050505;
        font-weight: 400;
    }
	.box-bd1 ul li h5 {
		text-align: center;
        margin: 20px 20px 20px 25px;
        font-size: 32px;
        color: #999;
        font-weight: 400;
	}
    .box-bd1 .info {
        margin: 0 20px 0 25px;
        font-size: 18px;
        color: #050505;
    }
	/* bd2 */
	.box-bd2 ul {
	    width: 1225px;
	}
	
	.box-bd2 ul li {
	    float: left;
	    width: 1200px;
		min-height: 20vh;
	    background-color: #fff;
	    margin-right: 15px;
	    margin-bottom: 15px;
	}
	.box-bd2 ul li img {
	    heigth: 100%;
	}
	.box-bd2 ul li h6 {
		text-align: left;
	    margin: 20px 20px 20px 25px;
	    font-size: 22px;
	    color: #AE0000;
	    font-weight: 400;
	}
	.box-bd2 .info {
	    margin: 0 20px 20px 25px;
	    font-size: 18px;
	    color: #050505;
	}
	/* bd3 */
	.box-bd3 ul {
	    width: 1225px;
	}
	
	.box-bd3 ul li {
	    float: left;
	    width: 1200px;
		min-height: 20vh;
	    background-color: #fff;
	    margin-right: 15px;
	    margin-bottom: 15px;
	}
	.box-bd3 ul li img {
	    heigth: 100%;
	}
	.box-bd3 ul li h6 {
		text-align: left;
	    margin: 20px 20px 20px 25px;
	    font-size: 20px;
	    color: #AE0000;
	    font-weight: 400;
	}
	.box-bd3 .info {
	    margin: 0 20px 20px 25px;
	    font-size: 18px;
	    color: #050505;
	}
	/* footer 模块区域 */
	
	.footer {
	    height: 315px;
	    background-color: #fff;
	}
	
	.footer .w {
	    padding-top: 35px;
	}
	
	.footer .left {
	    float: left;
	}
	.footer .left p {
	    font-size: 12px;
	    color: #666;
	    margin: 20px 0 15px 0;
	}
	
	.footer .left a {
	    display: block;
	    width: 118px;
	    height: 33px;
	    border: 1px solid #00a4ff;
	    text-align: center;
	    line-height: 33px;
	    font-size: 16px;
	    color: #00a4ff;
	}
	
	.footer .right {
	    float: right;
	}
	
	.footer .right dl {
	    float: left;
	    margin-left: 100px;
	}
	
	.footer .right dl dt {
	    font-size: 16px;
	    color: #333;
	    margin-bottom: 5px;
	}
	
	.footer .right dl dd a {
	    font-size: 12px;
	    color: #333;
	}