/* 公共的代码 */
/* 每一个页面都能应用到 */
/* 万能清除法 */
.wnqc:after {
    content: "";
    display: block;
    clear: both;
    width: 0px;
    height: 0px;
    overflow: hidden;
    visibility: hidden;
    font-size: 0px;
    opacity: 0;
}

html,
body,
p,
h1,
h2,
h3,
h4,
h5,
h6,
input,
form,
table,
ul,
ol,
hr {
    margin: 0;
    padding: 0
}

/* 解决3px的留白问题 */
img {
    display: block
}

input,
textarea,
select,
img {
    /* 取消边框: border:0 */
    border: none;
    /* 取消描边效果 */
    outline: none
}

ul,
ol {
    list-style: none
}

a,
u,
s,
del {
    text-decoration: none;
}

b,
strong,
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: normal;
}

i,
em {
    font-style: normal;
}

.float_l {
    float: left;
}

.float_r {
    float: right;
}

.margin_a {
    margin: 0 auto;
}

header {
    width: 100%;
    position: fixed;
    top: 0;
    z-index: 999;
}

.header-c {
    height: 1rem;
}

.banner {
    width: 100%;
}

main {
    font-family: PingFangSC, PingFang SC;
}

footer {
    width: 100%;
    height: 4.58rem;
}

iframe {
    /* 解决.04rem 留白 */
    display: block;
    /* 取消边框 */
    border: none;
    width: 100%;
    height: 100%
}

.tab1Bg-box {
    width: 100%;
    height: 6.75rem;
    background-repeat: no-repeat;
    background-size: cover;
}