/*公用样式开始 7-1 16:26*/

@charset "utf-8";
html {
    -webkit-text-size-adjust: none;
    -ms-text-size-adjust: none;
    -moz-text-size-adjust: none;
    -o-text-size-adjust: none;
    text-size-adjust: none;
}

* {
    outline: none;
}

html,
body {
    font-size: 12px;
    font-family: '微软雅黑';
}

body {
    font: 12px/1.5;
    /*	background-image: url(./background.png);*/
    background-repeat: no-repeat;
    background-position: 120% 90%;
    background-attachment: fixed;
    background-color: rgba(243, 251, 255, 1);
}

body,
div,
p,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
input,
textarea,
select,
canvas,
button,
dl,
dd,
dt {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: inherit;
}

header,
hgroup,
nav,
section,
article,
aside,
footer {
    display: block;
}

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

fieldset,
img {
    border: 0;
}

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

ul,
ol,
li {
    list-style: none;
}

caption,
th {
    text-align: left;
}

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

abbr,
acronym {
    border: 0;
    font-variant: normal;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
    font-weight: inherit;
}

input,
textarea,
select {
    *font-size: 100%;
}

legend {
    color: #000;
}

img {
    vertical-align: top;
}

a:link,
a:visited {
    text-decoration: none;
}

.jjbhbox {
    min-height: 600px;
}


/*清除浮动*/

.clear {
    clear: both;
}


/*清除浮动--推荐使用*/

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

.clearfix:after {
    clear: both;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

.quan {
    width: 6px;
    height: 6px;
    background: #4896FF;
    border-radius: 50%;
    display: inline-block;
    margin-right: 10px;
    position: relative;
    bottom: 3px;
}

footer {
    width: 100%;
    background-color: #164299;
    background-image: url(https://old1.bast.net.cn/images/3341/botlogo.png);
    background-repeat: no-repeat;
    background-position: 20px 50%;
    position: relative;
    bottom: 0px;
    /* margin-top: 50px; */
}

.footmain {
    padding-top: 30px;
    padding-bottom: 30px;
}

.footmain p {
    font-size: 12px;
    line-height: 23px;
    text-align: center;
    color: #fff;
}

.footmain p a {
    color: #fff
}

.footicon {
    width: 200px;
    position: absolute;
    right: 20px;
    top: 50%;
    margin-top: -35px;
}

.footinone {
    width: 100px;
    height: 100px;
    text-align: center;
    line-height: 1.8em;
    color: #fff;
}

.footinone:first-child {
    display: none;
}

.footimg {
    width: 100%;
    height: 580px;
    background: url(./footbg.png);
    position: relative;
    top: -122px;
}

.foot_bg {
    position: absolute;
    width: 100%;
    height: 512px;
    top: 2080px;
    background: url(./footer_bg.png);
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

.box {
    width: 1200px;
    height: auto;
    margin: 0 auto;
}

.lefttap {
    border-bottom: 2px solid rgba(107, 148, 205, 0.3);
    margin-bottom: 20px;
}

.lefttap span {
    display: block;
    width: auto;
    height: 46px;
    float: left;
    text-align: center;
    line-height: 50px;
    font-size: 20px;
    cursor: pointer;
    margin-right: 30px;
    font-weight: 500;
    color: #323333;
    margin-bottom: -2px;
}

.lefttapcho a {
    font-weight: 800;
    color: #062881 !important;
}

.lefttap span a {
    color: #000;
    display: block;
}

.lefttapcho {
    font-weight: 800;
    color: #0F66DA;
    /* background-color: #C1DEFF; */
    border-bottom: 4px solid #062881;
}

.hide {
    display: none!important;
}

.flex {
    display: flex;
    justify-content: space-between;
}


/* 公共样式结束 */


/* header start */

body {
    background-color: rgb(243, 251, 255);
}

header {
    width: 100%;
    height: 1080px;
    background-image: url(/picture/0/2212312215037672377.jpg);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.out-box {
    width: 1200px;
    height: auto;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
    margin-top: 40px;
    margin-bottom: 40px;
    overflow: hidden;
}

.txt {
    font-size: 24px;
    text-indent: 2em;
    line-height: 46px;
    text-align: justify;
    background-color: #fff;
    padding: 30px;
    box-sizing: border-box;
}

.content {
    margin-top: 40px;
    display: grid;
    /* grid-gap: 20px 20px; */
    justify-content: space-between;
    grid-template-columns: repeat(auto-fill, 268px);
    background-color: #fff;
}

.video {
    width: 268px;
    height: auto;
    display: inline-block;
    background: #FFFFFF;
    border: 1px solid #CCDEE5;
    margin-bottom: 25px;
}

.img {
    width: 100%;
    height: 150px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video img {
    width: 54px;
    height: 54px;
}

.text {
    height: 66px;
    padding: 15px;
    box-sizing: border-box;
}

.title {
    font-size: 16px;
    font-weight: bold;
    color: #364F80;
    line-height: 18px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

@media only screen and (max-width: 1800px) {
    header {
        width: 100%;
        height: 1010px;
        background-image: url(/picture/0/2212312215037672377.jpg);
        background-size: contain;
        background-position: top;
        background-repeat: no-repeat;
    }
}
@media only screen and (max-width: 1500px) {
    header {
        width: 100%;
        height: 840px;
        background-image: url(/picture/0/2212312215037672377.jpg);
        background-size: contain;
        background-position: top;
        background-repeat: no-repeat;
    }
}