@charset "utf-8";

/* :root {
	--mainColor: #3a60b2;
	--minWidth: 1080px;
} */

html,
body {
    scroll-behavior: smooth;
    width: 100%;
}

body {
    text-align: left;
    padding: 0;
    margin: 0;
    font-size: 14px;
    font-family: "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Segoe UI", "PingFang SC", "Hiragino Sans GB";
    color: #333333;
    background: #fff;
    box-sizing: border-box;
    overflow-x: auto;
    min-width: 1080px;
}

span,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
p {
    padding: 0;
    margin: 0;
}

pre,
code,
form,
fieldset,
legend,
input,
textarea,
p,
blockquote,
th {
    padding: 0;
    margin: 0;
}

fieldset {
    border-top-width: 0;
    border-left-width: 0;
    border-bottom-width: 0;
    border-right-width: 0;
}

a {
    text-decoration: none;
}

a:hover {
    color: #1E50AE;
}

a img {
    border: 0;
    padding: 0;
    margin: 0;
}

i {
    font-style: normal;
}

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

li {
    list-style-type: none;
}

caption {
    text-align: left;
}

th {
    text-align: left;
}

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

q:unknown {
    content: '';
}

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

input::placeholder {
    color: #949494;
}

.content_box {
    width: 1200px;
    margin: auto;
}


/* 返回顶部按钮 */

.option_box {
    width: 50px;
    height: 0px;
    background-color: #3E89F9;
    position: fixed;
    right: 57px;
    bottom: 50px;
    display: block;
    opacity: 1;
    transition: all 0.5s ease-in-out;
    background-image: url("images/goback_img.png");
    border-radius: 8px;
}

.option_box .icon {
    margin: 11px;
}


/* 导航栏 */

.head_navigation {
    width: 100%;
    height: 100px;
    background-color: rgba(255, 255, 255, .95);
    position: fixed;
    top: 0;
    z-index: 9999;
}

.navigation_list {
    width: 550px;
    display: flex;
    justify-content: space-between;
    padding-top: 10px;
    box-sizing: border-box;
}

.navigation_list li {
    width: 120px;
    height: 72px;
    line-height: 90px;
    text-align: center;
    position: relative;
    cursor: pointer;
}

.navigation_list li a {
    color: #4c4c4c;
    font-size: 16px;
}

.navigation_list li a i {
    width: 100%;
    height: 2px;
    position: absolute;
    left: 0;
    bottom: 0;
}

.navigation_list .li_selectes {
    color: #1E50C0;
}

.li_selectes i {
    background-color: #1E50AE;
}

.navigation_list li:hover i {
    background-color: #1E50AE;
}

.navigation_list li:hover a {
    color: #1E50C0;
}

.navigation_list li:hover .li_chinese {
    display: none;
}

.navigation_list li:hover .li_English {
    display: block !important;
}


/* 底部 */

.footer_box {
    width: 100%;
    height: 436px;
    background-color: #292D38;
    font-size: 14px;
    color: #9E9E9E;
}

.footer_content {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    font-size: 14px;
    color: #9E9E9E;
    padding: 80px 0;
    box-sizing: border-box;
}

.content_max {
    width: 300px;
    margin-right: 38px;
    text-align: center;
}

.content_main {
    width: 200px;
}

.footer_content>div>p:last-child {
    margin-top: 10px;
}

.bannerImg_box {
    width: 100%;
    height: 300px;
    margin-top: 100px;
}

.bannerImg_box img {
    width: 100%;
    height: 100%;
}


/*链接*/

.footA {
    color: #9E9E9E
}

.footA:hover {
    color: #9E9E9E
}

.footA:active {
    color: #9E9E9E
}

.footA:visited {
    color: #9E9E9E
}

.footItemA {
    color: #E5E5E5;
}

.footItemA:hover {
    color: #E5E5E5;
    text-decoration: underline
}

.footItemA:active {
    color: #FFF
}

.footItemA:visited {
    color: #E5E5E5
}

.contactUs { cursor: inherit; border-radius: 10px; padding: 20px 10px; height: 271px; text-align: center; box-shadow: none; float: left; width: 20%; margin-bottom: 30px; box-sizing: border-box; transition: box-shadow 0.3s linear; }

.contactUs:hover {
    box-shadow: 0 3px 4px rgb(0 0 0 / 23%), 0 0 8px rgb(0 0 0 / 26%);
}

.contactUs>h3 {
    font-size: 18px;
    margin: 25px 0;
}

.contactUs>p {
    font-size: 14px;
    line-height: 22px;
}

.certImg {
    border: 2px solid #ededed;
    padding: 10px;
    transition: transform 0.5s linear;
}

.certImg:hover {
    transform: scale(1.2);
    border-color: #F7F7F7
}