html {
    font-family: "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
    background: #f5f5f5;
    min-width: 1000px;
}

html,
body,
div,
object,
iframe,
applet,
object,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
address,
dl,
dt,
dd,
ol,
ul,
li,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video,
progress {
    margin: 0;
    padding: 0;
    border: 0;
}

html,
body {
    background-color: #fff;
    min-width: 1200px;
}

li {
    list-style: none
}

a {
    background-color: transparent;
    text-decoration: none
}

b,
strong {
    font-weight: bold
}

img {
    border: 0;
    vertical-align: middle;
}

article,
aside,
details,
figcaption,
figure,
footer,
header,
main,
menu,
nav,
section,
summary {
    display: block
}

audio,
canvas,
progress,
video {
    display: inline-block
}

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

td,
th {
    padding: 0
}

.hide {
    display: none;
}

.clearfix:after {
    visibility: hidden;
    display: block;
    font-size: 0;
    content: "";
    clear: both;
    height: 0;
}

.clearfix {
    zoom: 1;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

.wrap {
    width: 1200px;
    margin: 0 auto;
}

/* 专题顶部导航 */

.top-bar {
    border-bottom: 2px #E20000 solid;
    background: #fff;
    z-index: 1000;
}

.top-bar-login,
.top-bar-login-after {
    line-height: 30px;
    font: 12px/30px simsun;
}

.top-bar-login-after {
    display: none;
}

.top-bar .ofw-logo {
    margin-top: 2px;
}

.top-bar-login>.signin {
    display: inline-block;
    background: #e20000;
    height: 24px;
    width: 50px;
    border-radius: 2px;
    text-align: center;
    margin-top: 3px;
    line-height: 24px;
}

.top-bar-login>.signin>a {
    color: #fff;
}

.top-bar-login a,
.top-bar-login-after a {
    color: #333;
}

.top-bar-login a:hover,
.top-bar-login-after a:hover {
    text-decoration: underline;
}

.top-bar-login i {
    font-style: normal;
    color: #666;
}

.top-bar-login>.email {
    padding-left: 24px;
    display: inline-block;
    background: url(http://images.ofweek.com/images/global-steven/email/ico_email.png) no-repeat left;
}

/* banner */
.banner {
    position: relative;
    /* height: 390px; */
    max-height: 390px;
    background: url("../images1/top_02.png") no-repeat;
    background-size: contain;
}

.banner a {
    display: inline-block;
    margin-right: 20px;
}

.tishi {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 400px;
    height: 52px;
    line-height: 52px;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    background-color: rgba(0, 0, 0, .7);
    z-index: 1111111;
    display: none;
}

.btnWrap {
    position: relative;
    margin: 20px auto 40px;
    cursor: pointer;
}

.btnWrap a {
    color: #fff;
}

.btnWrap .move {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.title {
    display: block;
    text-align: left;
}

.title h3 {
    display: inline-block;
    font-size: 36px;
    color: #333;
    font-weight: 600;
    margin-top: 30px;
}

.title h3::after {
    content: "";
    display: block;
    width: 80px;
    height: 5px;
    /* background: url(../images/title_icon.png) no-repeat; */
    margin: 10px auto;
}

.title .tit_l {
    color: #2b69a2;
    font-size: 36px;
    font-weight: 600;
}

.title .tit_r {
    color: #aaaaaa;
    font-size: 22px;
    font-weight: 600;
}

/* 引 言 */
.intro {
    width: 100%;
}

.intro .wrap {
    background: #fff;
    margin: 20px auto;
    padding-bottom: 30px;
}

.intro .wrap .con {
    padding-top: 25px;
    width: 695px;
}

.intro .wrap .con p {
    font-size: 16px;
    color: #333;
    padding-top: 10px;
    line-height: 1.8;
}

/* box1 */
.box1 {
    height: 575px;
    background: url(../images/mirsaicbg.png) no-repeat top center;
}

.box1 .wrap {
    position: relative;
}

.swiper-btn-prev,
.swiper-btn-next {
    position: absolute;
    top: 250px;
    display: block;
    width: 70px;
    height: 70px;
    cursor: pointer;
    outline: none;
}

.swiper-btn-prev {
    left: -100px;
    background: url(../images/left_icon.png) no-repeat;
}

.swiper-btn-next {
    right: -100px;
    background: url(../images/right_icon.png) no-repeat;
}

.box1 .swiper-slide {
    padding-top: 100px;
}

.box1 .swiper-slide .fl {
    width: 375px;
    padding-top: 85px;
}

.box1 .swiper-slide .fl h3 {
    font-size: 36px;
    color: #333;
    margin-bottom: 22px;
}

.box1 .swiper-slide .fl h3 span {
    color: #5091ce;
}

.box1 .swiper-slide .fl p {
    font-size: 18px;
    color: #333;
    line-height: 1.8;
}

/* MiR生态系统简介 */
.box2 {
    height: 440px;
    background: url(../images/mirsaicbg.png) no-repeat top center;
    margin-top: 70px;
}

.box2 .wrap {
    padding-top: 35px;
}

.box2 ul {
    margin-top: 30px;
}

.box2 ul li {
    position: relative;
    width: 20%;
    text-align: center;
    cursor: pointer;
}

.box2 ul li .img_box {
    width: 100%;
    height: 162px;
    font-size: 0;
    line-height: 162px;
}

.box2 ul li .img_box img {
    display: inline-block;
    vertical-align: middle;
}

.box2 ul li p {
    font-size: 18px;
    color: #2b69a2;
    font-weight: bold;
    padding-top: 20px;
}

.box2 ul li .hide_txt {
    display: none;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: #2e699f;
}

.box2 ul li:hover .hide_txt {
    display: block;
}

.box2 ul li .hide_txt p {
    padding: 30px;
    font-size: 14px;
    color: #fff;
    line-height: 1.8;
    text-align: left;
}

/* 弹框 */
.mask {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, .8);
    z-index: 111111111111111;
    display: none;
}

.popup {
    position: fixed;
    top: 100px;
    left: 50%;
    bottom: 100px;
    transform: translateX(-50%);
    width: 700px;
    height: auto;
    overflow: hidden;
    border: 1px solid #dfdfdf;
}

.popup_wrap {
    width: 720px;
    height: 100%;
    overflow: auto;
}

.popup .del {
    position: absolute;
    top: 0px;
    right: 0px;
    width: 25px;
    height: 25px;
}

/* 关于MiR自主移动机器人 */
.bottom {
    height: 460px;
    background: url(../images/mirsaicbg2.png) no-repeat;
}

.bottom .wrap {
    padding-top: 40px;
}

.bottom .title h3 {
    color: #fff;
}

.bottom .title h3::after {
    /* background: url(../images/title_icon2.png) no-repeat; */
}

.bottom .fl {
    width: 960px;
}

.bottom .fl p {
    font-size: 18px;
    color: #fff;
    margin-bottom: 15px;
    line-height: 1.6;
    text-indent: 2em;
}

.nav-wrap {
    position: relative;
}

.nav {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 82px;
    line-height: 84px;
    background-color: #fff;
}

.nav a {
    display: inline-block;
    padding: 0 20px;
    color: #000;
    font-size: 16px;
}

.nav img {
    padding-top: 20px;
}

.nav a:hover {
    color: #2b69a2;
}

.nav.on {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 11111111111111;
    border-bottom: solid 1px #ddd;
}

.box5 {
    margin-top: 60px;
}

.box5 .cont_box {
    display: flex;
    justify-content: flex-start;
}

.box5 .right_box {
    width: 565px;
    padding-left: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.box5 .box5_title1 {
    font-size: 58px;
    line-height: 60px;
    color: #eeeeee;
    font-weight: 600;
    margin-bottom: 8px;
}

.box5 .box5_title2 {
    font-size: 36px;
    line-height: 36px;
    color: #2b69a2;
    font-weight: 600;
    margin-bottom: 15px;
}

.box5 .box5_title3 {
    font-size: 18px;
    line-height: 18px;
    color: #999;
    margin-bottom: 30px;
}

.box5 .box5_cont {
    color: #000000;
    font-size: 16px;
    line-height: 30px;
    text-indent: 33px;
}

.box5 .img_box  {
    width: 50%;
    height: 601px;
    position: relative;
    overflow: hidden;
}

.box5 .img_box  img {
    min-width: 960px;
    min-height: 601px;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}

.box6 {
    background-color: #e1f0f7;
    padding-top: 60px;
    padding-bottom: 20px;
}

.box6 ul {
    display: flex;
    justify-content: center;
}

.box6 ul .jiantou {
    width: 126px;
    position: relative;
}

.box6 ul .jiantou img {
    margin: 0 34px;
    position: absolute;
    top: -70px;
    left: 0;
    bottom: 0;
    right: 0;
    margin: auto;
}

.box6 .logo_box {
    width: 163px;
}

.box6 .logo_box .img_box {
    width: 163px;
    height: 163px;
    background-color: #fff;
    position: relative;
    border-radius: 20px;
}

.box6 .logo_box .img_box img {
    width: 94px;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}

.box6 .logo_box .log_name {
    text-align: center;
    font-size: 20px;
    font-weight: 600;
    color: #2b69a2;
    padding-top: 20px;
}

.box7 {
    padding-top: 60px;
}

.box7 ul {
    display: flex;
    justify-content: center;
}

.box7 li {
    width: 530px;
}

.box7 li p {
    line-height: 30px;
}

.box7 li .box7_title {
    font-size: 24px;
    color: #1179c2;
    font-weight: 600;
    margin-bottom: 20px;
}