*{
    margin: 0;
    padding: 0;
    font-family:"Microsoft YaHei",微软雅黑,"MicrosoftJhengHei",华文细黑,STHeiti,MingLiu
}
body{
    overflow-x:hidden;
    letter-spacing: 1px;
    color: #333333!important;
    font-family: 'Microsoft YaHei';
}
.rel {
    position: relative;
}
.clearfix:after {
    content: '';
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}
.clearfix {
    /* IE6-7 专有 */
    *zoom: 1;
}
a:link,
a:visited,
a:hover,
a:active {
    text-decoration: none;
    outline: none;
}
.w-1200 {
    width: 1200px;
    margin: 0 auto;
}
#header{
    width: 100%;
    height: 100px;
    background-color: #fff;
    position: fixed;
    top: 0;
    z-index: 999;
}
.logo {
    float: left;
    margin: 17px 0 0 0;
    width: 247px;
    height: 66px;
}
.logo img {
    width: 247px;
    height: 66px;
}
.nav {
    float: right;
    list-style: none;
    color: #616469;
    margin: 38px 0 0 0;
    font-family: 'Microsoft YaHei';
}
.nav > li {
    float: left;
    height: 24px;
    line-height: 24px;
    margin-left: 100px;
    padding: 0 0 38px;
    font-size: 18px;
    font-weight: 400;
    position: relative;
    cursor: pointer;
    color: #2D2D2D;
}
.nav > li > a {
    text-decoration: none;
    display: block;
    height: 60px;
    color: #2D2D2D;
}
.nav > li.active  > a,
.nav > li.active {
  font-weight: bold;
  color: #28A300;
}
.nav > li::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: #28A300;
    border-radius: 4px;
    opacity: 0;
    transform: scaleX(0);
    -webkit-transform: scaleX(0);
    -ms-transform: scaleX(0);
    -webkit-transition: all .5s cubic-bezier(0.18, 0.89, 0.17, 0.88), opacity .25s ease;
    -o-transition: all .5s cubic-bezier(0.18, 0.89, 0.17, 0.88), opacity .25s ease;
    transition: all .5s cubic-bezier(0.18, 0.89, 0.17, 0.88), opacity .25s ease;
}
.nav > li:hover::before, .nav > .active:before {
    opacity: 1;
    -webkit-transform: scaleX(1);
    -ms-transform: scaleX(1);
    transform: scaleX(1);
}

 /*首页 */
.section1 {
    margin-top: 100px;
    height: 900px;
    background: url("../images/bg_banner.png") no-repeat center top;
    background-size: auto 900px;
}

.section1 h1 {
    font-size: 70px;
    line-height: 80px;
    letter-spacing: 0px;
    color: #343443;
}
.section .section1-h1 {
    background: linear-gradient(90deg, #28A300 41.81%, #89D755 71.68%);
    -webkit-background-clip: text; /* 兼容Webkit浏览器 */
    background-clip: text;
    color: transparent;
    font-size: 70px;
}

/* 公司简介 */
.section2 {
    padding-top: 202px;
}
.section2 .introduction-content {
    height: 798px;
    background: url("../images/bg_know_2.png") no-repeat center top;
    background-size: auto 798px;
}
.section2 .introduction-title {
    position: absolute;
    top: -124px;
    height: 66px;
}
.section2 .introduction-text {
    position: absolute;
    right: 44px;
    font-size: 18px;
    width: 350px;
    color: #FFFFFF;
    line-height: 32px;
    letter-spacing: 0;
}

.section2 .introduction-img {
    position: absolute;
    top: -124px;
    right: 0;
    width: 442px;
    height: 124px;
    text-align: center;
    line-height: 180px;
    background-color: #ECFD34;
}

.section2 .introduction-img img {
    height: 66px;
}

.section2 .introduction-text ul>li {
    margin-top: 44px;
}

.section2 .introduction-text ul>li>span {
    color: #DCEC26;
    font-weight: bold;
}

/* 关于我们 */
.section3 {
    padding: 64px 0 0 0;
    height: 840px;
    box-sizing: border-box;
    background: url("../images/bg_about_3.png") no-repeat center top;
    background-size: auto 840px;
    font-size: 18px;
}

.section3 .about-text {
    display: flex;
    flex-flow: wrap row;
    line-height: 28px;
    font-size: 18px;
}

.section3 .about-text p {
    line-height: 28px;
    width: 444px;
}
.section3 .about-text img {
    margin-top: 1px;
    width: 26px;
}
.section3 .about-text span:last-child {
    display: inline-block;
    width: 427px;
}
.flex-start {
    display: flex;
    align-items: flex-start
}
.about-map {
    background-color: #ffffff;
    margin-top: 46px;
    padding: 5px;
    border-radius: 10px;
}

/* 回到顶部 */
.back-top {
    display: none;
    position: fixed;
    width: 60px;
    height: 60px;
    right: 46px;
    bottom: 200px;
    z-index: 100;
    cursor: pointer;
}

/*  底部 */
.footer {
    width: 100%;
    background-color: #1E2234;
    height: 160px;
}
.footer .logo {
    float: left;
    margin: 47px 0 0 0;
}
.footer .copyright {
    float: right;
    padding: 71px 3px 0 0;
    color: #7E85A3;
    font-size: 16px;
    line-height: 32px;
}

.footer .copyright a {
    color: #7E85A3;
    font-size: 16px;
}