html {
    font-size: calc(100vw/75);
    font-size: -moz-calc(100vw/75);
    font-size: -webkit-calc(100vw/75);
}

* {
    margin: 0;
    padding: 0;
}

*,
*:before,
*:after {
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
}

body,
h1,
h2,
h3,
h4,
h5,
h6 hr,
p,
blockquote,
dl,
dt,
dt,
dd,
ul,
ol,
li,
pre,
form,
fieldset,
legend,
button,
input,
textarea,
th,
td,
img {
    border: medium none;
    margin: 0;
    padding: 0;
    font-family: 微软雅黑;
    border: none;
}

img {
    vertical-align: top;
}

em {
    font-style: normal;
}

ul,
ol {
    list-style: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

a,
ins {
    text-decoration: none;
}

*:focus {
    outline: none;
}

a {
    color: #333;
}

.left {
    float: left;

}

.right {
    float: right;
}

/* 清除浮动带来的效果 */
.clearfix:after {
    display: block;
    content: "";
    height: 0;
    visibility: hidden;
    clear: both;
}

.clearfix {
    zoom: 1;
}

.hide {
    display: none;
}

.block {
    display: block;
}

.box-1200 {
    width: 1200px;
    margin: 0 auto;

}

/* 头部 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    width: 100%;
    height: 8rem;
    text-align: center;
    font-size: 3.6rem;
    font-family: Source Han Sans CN;
    color: #FFFFFF;
    line-height: 8rem;
    background: #0098FF;
}

.mian_sx {
    margin-top: 8rem;
    height: 5rem;
    text-align: center;
    background-color: #F5F5F5;
    font-size: 2.6rem;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #666666;
    line-height: 5rem;
}
/* 尾部 */