.w1600 {
    width: 100%;
    position: relative;
    margin: 0 auto;
}

.w {
    width: 1200px;
    position: relative;
    margin: 0 auto;
}

.col-md-6 {
    width: 45%;
    float: left;
}

.col-md-5 {
    width: 49%;
    float: left;
}

.col-md-7 {
    width: 58%;
    float: left;
}

.col-md-12 {
    width: 100%;
    float: left;
}

.col-md-3 {
    width: 20%;
    float: left;
    position: relative;
}




body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
textarea,
p,
blockquote,
th,
td,
hr,
button,
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
    margin: 0;
    padding: 0;
}

button {
    border: 0;
    background-color: transparent;
    outline: none;
}

body,
html {
    width: 100%;
    height: 100%;
    min-width: 100%;
    min-height: 100%;
    background-color: #f7f7f7;
}




body,
select,
textarea {
    font: 14px Helvetica Neue,Helvetica,PingFang SC,Tahoma,Arial,sans-serif
}

input,
select,
textarea {
    border: none;
}




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




th {
    text-align: inherit;
}




fieldset,
img {
    border: none;
}



iframe {
    display: block;
}



abbr,
acronym {
    border: none;
    font-variant: normal;
}




del {
    text-decoration: line-through;
}


address,
caption,
cite,
code,
dfn,
em,
th,
var {
    font-style: normal;
    font-weight: 500;
}



ol,
ul {
    list-style: none;
}



caption,
th {
    text-align: left;
}



h1,
h2,
h3,
h4,
h5,
h6 {
    font-size: 100%;
    font-weight: 500;
}

q:before,
q:after {
    content: '';
}


sub,
sup {
    font-size: 75%;
    line-height: 0;
    position: relative;
    vertical-align: baseline;
}

sup {
    top: -0.5em;
}

sub {
    bottom: -0.25em;
}


ins,
a {
    text-decoration: none;
    color: inherit;
}


a:focus,
*:focus {
    outline: none;
}



.clearfix:before,
.clearfix:after {
    content: "";
    display: table;
}

.clearfix:after {
    clear: both;
    overflow: hidden;
}

.clearfix {
    zoom: 1;

}

.clear {
    clear: both;
    display: block;
    font-size: 0;
    height: 0;
    line-height: 0;
    overflow: hidden;
}

.fl {
    float: left;
}

.fr {
    float: right;
}