/* 关于我们 start */
.about_us {
    margin-top: 10px;
    overflow: hidden;
    background-color: #1F2136;
    background-size: cover;
    color: #fff;
    padding: 10px;
}
.about_us_title {
    font-size: 26px;
    font-weight: bold;
    text-align: center;
    line-height: 40px;
}
.about_us_subtitle {
    font-size: 16px;
    text-align: center;
    line-height: 30px;
}
.about_us_content {
    font-size: 14px;
    line-height: 24px;
}
.about_us_content p {
    text-indent: 2em;
    color: #fff !important;
    background-color: transparent !important;
    font-size: 16px !important;
}
.about_us_content p span {
    color: #fff !important;
    font-size: 16px !important;
}
.more_aboutus {
    margin: 10px auto;
    text-align: center;
    padding: 5px 10px;
    border: 1px solid #fff;
    border-radius: 2px;
    width: 80px;
    height: 24px;
    line-height: 24px;
    font-size: 14px;
}
.about_us_btn_main {
    margin: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.about_us_btn_list {
    flex: 1;
    text-align: center;
    overflow: hidden;
}
.about_us_btn_item {
    display: block;
    width: 140px;
    height: 140px;
    overflow: hidden;
    margin: 0 auto;
    
    background-size: cover;
    text-decoration: none;
}
.about_us_btn_img {
    display: block;
    width: 24px;
    height: 24px;
    overflow: hidden;
    margin: 36px auto 0;
}
.about_us_btn_title {
    line-height: 24px;
    color: #fff;
    font-size: 14px;
    text-align: center;
    margin: 10px 0 0;
}
/* 关于我们 end */

/* 产品中心 start */
.produts_main {
    /* margin-top: 10px; */
    padding: 10px 0 10px 10px;
    overflow: hidden;
    background-color: #1F2136;
    background-size: cover;
    color: #fff;
}
.produts_title {
    font-size: 26px;
    font-weight: bold;
    text-align: center;
    line-height: 40px;
    padding-right: 10px;
}
.produts_subtitle {
    font-size: 16px;
    text-align: center;
    line-height: 30px;
    text-transform: uppercase;
    padding-right: 10px;
}
.produts_list {
    display: flex;
    overflow: hidden;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}
.produts_item {
    margin: 0 10px 10px 0;
    width: calc((100vw - 30px) / 2);
    min-width: calc((100vw - 30px) / 2);
    max-width: calc((100vw - 30px) / 2);
    height: calc((100vw - 30px) / 2);
    overflow: hidden;
    position: relative;
    display: block;
    text-transform: none;
    color: #fff;
}
.produts_item_img {
    width: 100%;
    height: 100%;
    display: block;
}
.produts_item_title {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 00.5);
    font-size: 12px;
    height: 30px;
    line-height: 30px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    text-align: center;
    padding: 0 10px;
}
.more_produts {
    margin: 10px auto;
    width: 140px;
    height: 40px;
    line-height: 40px;
    border: 1px solid #fff;
    border-radius: 2px;
    text-transform: uppercase;
    text-align: center;
    display: block;
    text-decoration: none;
    color: #fff;
}
/* 产品中心 end */

/* 新闻资讯 start */
.news_main {
    padding: 10px 0 10px 10px;
    overflow: hidden;
    position: relative;
    background-color: #1F2136;
    background-size: cover;
    color: #fff;
}
.news_title {
    font-size: 26px;
    font-weight: bold;
    color: #fff;
    padding-right: 10px;
    text-align: center;
    line-height: 40px;
}
.news_subtitle {
    font-size: 16px;
    text-align: center;
    line-height: 30px;
    text-transform: uppercase;
    padding-right: 10px;
}
.sub_nav_main {
    padding: 10px 10px 10px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.sub_nav_list {
    height: 40px;
    line-height: 40px;
    border-right: 1px solid #ccc;
    background-color: #fff;
    font-size: 14px;
    flex: 1;
    color: #333;
    text-decoration: none;
}
.sub_nav_list:last-of-type {
    border-right: 0;
}
.sub_nav_hover {
    background-color: #11348e;
    color: #fff;
}
.news_list {
    display: flex;
    overflow: hidden;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}
.news_item {
    margin: 0 10px 10px 0;
    width: calc((100vw - 30px) / 2);
    min-width: calc((100vw - 30px) / 2);
    max-width: calc((100vw - 30px) / 2);
    height: calc((100vw - 30px) / 2);
    overflow: hidden;
    position: relative;
    display: block;
    text-transform: none;
    color: #fff;
}
.news_item_img {
    width: calc((100vw - 30px) / 2);
    height: calc((100vw - 30px) / 2 - 30px);
    overflow: hidden;
    position: relative;
}
.news_item_img img {
    display: block;
    width: 100%;
    height: 100%;
}
.news_item_riqi {
    background-color: rgba(0, 0, 0, 0.5);
    color: #fff;
    height: 20px;
    line-height: 20px;
    position: absolute;
    left: 0;
    bottom: 5px;
    font-size: 12px;
    border-radius: 0 30px 30px 0;
    padding: 0 10px;
}
.news_item_title {
    background-color: #fff;
    border-top: 1px solid #ccc;
    box-sizing: border-box;
    height: 30px;
    line-height: 30px;
    padding: 0 5px;
    font-size: 14px;
    color: #333;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.more_news {
    margin: 10px auto;
    border-radius: 30px;
    height: 30px;
    line-height: 30px;
    padding: 0 20px;
    font-size: 14px;
    color: #fff;
    background-color: #11348e;
    width: 100px;
    text-align: center;
    text-decoration: none;
    display: block;
}
/* 新闻资讯 end */

/* 联系我们 start */
.contact_main {
    padding: 10px 0 10px 10px;
    overflow: hidden;
    position: relative;
    background-color: #1F2136;
    background-size: cover;
    color: #fff;
}
.contact_title {
    font-size: 26px;
    font-weight: bold;
    color: #fff;
    padding-right: 10px;
    text-align: center;
    line-height: 40px;
}
.contact_subtitle {
    font-size: 16px;
    text-align: center;
    line-height: 30px;
    text-transform: uppercase;
    padding-right: 10px;
}
.contact_content {
    padding: 10px;
    margin-right: 10px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 4px;
    color: #333;
    font-size: 14px;
    text-align: left;
}
.contact_row {
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 30px;
}
.contact_row_lab {
    text-align: left;
}
.contact_row_val {
    flex: 1;
    text-align: left;
}
.contact_btn_main {
    padding: 10px;
    margin-right: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}
.contact_btn_list {
    flex: 1;
    text-align: center;
}
.contact_btn_list a {
    display: inline-block;
    margin: 10px auto;
    border-radius: 30px;
    line-height: 30px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    font-size: 14px;
    color: #fff;
    padding: 0 10px;
    text-decoration: none;
}
/* 联系我们 end */