.nav {
    background-color: white;
}

.nav .logo {
    background: none;
}

.nav .nav_list {
    color: #333;
}

.about_banner {
    background-image: url("../images/about/about_banner.png");
}

.tab_list {
    border-bottom: 1px solid #EDEDED;
    height: 100px;
    line-height: 100px;
    font-size: 22px;
    text-align: center;
}

.tab_list a.active {
    color: #00DDD5;
}

.tab_list span {
    margin: 0 40px;
}

.info_box {
    text-align: center;
}

.info_box li.title {
    font-weight: bold;
    font-size: 36px;
}

.info_box li.split_line p {
    width: 75px;
    height: 4px;
    margin: 0 auto;
    background-color: #00DDD5;
}

.padding_top_80 {
    padding-top: 80px;
}

.padding_bottom_100 {
    padding-bottom: 100px;
}

.margin_bottom_20 {
    margin-bottom: 20px;
}

.margin_bottom_30 {
    margin-bottom: 30px;
}

.margin_bottom_130 {
    margin-bottom: 130px;
}

.info_box li.info {
    line-height: 30px;
    color: #656667;
}

.mission_box,
.concept_box,
.target_box {
    height: 265px;
    background-position: center;
    background-position: center;
    background-repeat: no-repeat;
    padding: 75px 0 0 80px;
}

.mission_box {
    background-image: url("../images/about/about_1.png");
}

.concept_box {
    background-image: url("../images/about/about_2.png");
}

.target_box {
    background-image: url("../images/about/about_3.png");
}

.target_box li:nth-child(1),
.concept_box li:nth-child(1),
.mission_box li:nth-child(1) {
    color: #333;
    font-size: 28px;
}

.target_box li:nth-child(1) span,
.concept_box li:nth-child(1) span,
.mission_box li:nth-child(1) span {
    display: inline-block;
    vertical-align: middle;
    width: 10px;
    height: 10px;
    background-color: #00DDD5;
    font-weight: 600;
    margin-right: 10px;
}

.target_box li:nth-child(2),
.target_box li:nth-child(3),
.concept_box li:nth-child(2),
.concept_box li:nth-child(3),
.mission_box li:nth-child(2),
.mission_box li:nth-child(3) {
    padding-left: 20px;
}

.target_box li:nth-child(2),
.concept_box li:nth-child(2),
.mission_box li:nth-child(2) {
    margin: 15px 0 20px;
}

.target_box li:nth-child(2) p,
.concept_box li:nth-child(2) p
.mission_box li:nth-child(2) p {
    width: 38px;
    height: 4px;
    background-color: #E6E6E6;
}

.culture_slogan {
    text-align: center;
    line-height: 32px;
    font-size: 18px;
    padding: 70px 0 130px;
}

.culture_img {
    margin: 100px auto 150px;
}

.product_banner {
    background-image: url("../images/product_banner.png");
}

.tab_lines {
    font-size: 22px;
    height: 100px;
    line-height: 100px;
    text-align: center;
    font-weight: bold;
    border-bottom: 1px solid #EDEDED;
    background-color: white;
}

.tab_lines a {
    margin: 0 40px;
}

.tab_lines a.active {
    color: #00DDD5;
}

.pages {
    margin-bottom: 100px;
}

.product_box {
    padding-top: 50px;

}

.product_box .product_list {
    background-color: white;
    display: flex;
    padding: 50px 40px 50px 60px;
}

.product_box .product_list ul:nth-child(1) {
    width: 300px;
}

.product_box .product_list ul:nth-child(2) {
    flex: 1;
    margin-left: 50px;
    padding-bottom: 80px;
    position: relative;
    min-height: 240px;
    border-bottom: 1px solid #F9F9F9;
}

.product_box .product_list ul:nth-child(2) li:nth-child(1) {
    font-size: 30px;
}

.product_box .product_list ul:nth-child(2) li:nth-child(2) {
    margin: 5px 0 15px;
}

.product_box .product_list ul:nth-child(2) li:nth-child(3) {
    color: #656667;
    font-size: 14px;
    line-height: 21px;
}

.product_box .product_list ul:nth-child(2) li.product_list_price {
    color: #1f1f1f;
    margin: 20px 0;
}

.product_box .product_list ul:nth-child(2) li.product_list_price span:nth-child(1) {
    font-size: 14px;
}

.product_box .product_list ul:nth-child(2) li.product_list_price span:nth-child(2) {
    font-size: 24px;
    font-weight: bold;
}

.product_box .product_list ul:nth-child(2) li.product_list_price span:nth-child(3) {
    font-size: 16px;
    font-weight: bold;
}
.product_box .product_list ul:nth-child(2) li.product_list_price span:nth-child(4) {
    font-size: 14px;
}
.product_box .product_list ul:nth-child(2) li:nth-child(5) {
    color: #00DDD5;
    font-size: 16px;
    text-align: right;
    position: absolute;
    bottom: 20px;
    right: 0;
}

.product_box .product_list ul:nth-child(2).detail li:nth-child(5) {
    color: #00DDD5;
    font-size: 16px;
    text-align: right;
    position: absolute;
    bottom: 20px;
    right: auto;
    left: 50px;
}

.product_box .product_list ul:nth-child(2).detail li:nth-child(5) a {
    display: block;
    width: 130px;
    line-height: 44px;
    text-align: center;
    background-color: #00DDD5;
    color: white;
}

.product_detail {
    padding: 0 50px;
    background-color: white;
    margin-top: 40px;
    margin-bottom: 100px;
}

.product_detail .title {
    height: 80px;
    line-height: 80px;
    text-align: center;
    border-bottom: 1px solid #EEEEEE;
    font-size: 24px;
    font-weight: bold;
}

.product_detail .news_title {
    text-align: center;
    border-bottom: 1px solid #EEEEEE;
    padding: 60px 0 40px;
}

.product_detail .news_title li:nth-child(1) {
    font-size: 24px;
    margin-bottom: 20px;
    font-weight: bold;
}

.product_detail .news_title li:nth-child(2) {
    font-size: 14px;
    color: #8B8B8B;
}

.product_detail .desc {
    padding: 35px 10px;
}

.product_detail .link {
    display: flex;
    justify-content: space-between;
    height: 100px;
    line-height: 100px;
    color: #333;
}

.product_detail .link a {
    color: #00DDD5;
}

.product_box .news_list {
    display: flex;
    background-color: white;
    padding: 50px 40px 50px 60px;
}

.product_box .news_list ul:nth-child(1) {
    width: 300px;
}

.product_box .news_list ul:nth-child(2) {
    width: 300px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding-left: 50px;
}

.product_box .news_list ul:nth-child(2) li:nth-child(1) p:nth-child(1) {
    font-size: 24px;
    margin-bottom: 15px;
}

.product_box .news_list ul:nth-child(2) li:nth-child(1) p:nth-child(2) {
    font-size: 14px;
    color: #656667;
    line-height: 21px;
}

.product_box .news_list ul:nth-child(2) li:nth-child(2) {
    display: flex;
    justify-content: space-between;
    color: #8B8B8B;
    font-size: 14px;
}

.product_box .news_list ul:nth-child(2) li:nth-child(2) a {
    color: #00DDD5;
    font-size: 16px;
}

.margin_right_50 {
    margin-right: 50px;
}

.news_banner {
    background-image: url("../images/news_banner.png");
}

.case_box {
    padding: 40px 0;
    margin: 0 -30px;
}

.case_box li {
    width: 570px;
    height: 330px;
    margin: 0 30px 50px;
    float: left;
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.case_box li p {
    position: absolute;
    height: 60px;
    width: 100%;
    text-align: center;
    line-height: 60px;
    bottom: 0;
    color: white;
    font-size: 18px;
    background-color: rgba(0, 0, 0, 0.6);
    font-weight: bold;
}

.case_banner {
    background-image: url("../images/case_banner.png");
}

.contact_banner {
    background-image: url("../images/contact/contact_banner.png");
}

.contact_info {
    text-align: center;
    width: 710px;
    line-height: 30px;
    font-size: 16px;
    color: #656667;
    padding-top: 80px;
    margin: 0 auto 50px;
}

.contact_info li:nth-child(1) {
    font-size: 36px;
    font-weight: bold;
}

.contact_info li:nth-child(2) {

}

.contact_info li:nth-child(2) span {
    display: inline-block;
    width: 75px;
    height: 4px;
    background-color: #00DDD5;
}

.company_title {
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 30px;
}

.company_info_tel,
.company_info {
    text-align: center;

}

.company_info_tel {
    margin-bottom: 10px;
}

.company_info {
    margin-bottom: 35px;
}

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

.company_info_tel ul li,
.company_info ul li {
    border: 1px solid #D1D1D1;

    background-repeat: no-repeat;

    font-size: 16px;
    color: #656667;
}

.company_info ul li {
    width: 376px;
    height: 210px;
    padding-top: 105px;
    background-position: center 30px;
}

.company_info_tel ul li {
    height: 202px;
    padding-top: 100px;
    background-position: center 26px;
}

.company_info_tel ul li p:nth-child(1),
.company_info ul li p:nth-child(1) {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
}

.company_info_tel ul li:nth-child(1) {
    background-image: url("../images/contact/icon4.png");
}

.company_info ul li:nth-child(1) {
    background-image: url("../images/contact/icon1.png");
}

.company_info ul li:nth-child(2) {
    background-image: url("../images/contact/icon2.png");
}

.company_info ul li:nth-child(3) {
    background-image: url("../images/contact/icon3.png");
}

.company_info_tel ul li p:nth-child(2) span {
    margin: 0 25px;
}

.contact_form {
    margin-bottom: 100px;
}

.contact_form input,
.contact_form textarea {
    background-color: #F7F7F7;
    border: 1px solid #ccc;
}

.contact_form input {
    height: 60px;
    flex: 1;
    padding: 0 12px;
}

.contact_form input:nth-child(2) {
    margin: 0 36px;
}

.contact_form li:nth-child(1) {
    display: flex;

}

.contact_form li:nth-child(2) {
    margin: 40px 0;
}

.contact_form textarea {
    height: 280px;
    width: 100%;
    resize: none;
    padding: 12px;
}

.contact_form li:nth-child(3) {
    text-align: center;
}

.contact_form li:nth-child(3) button {
    height: 50px;
    border-radius: 4px;
    border: 1px solid #00DDD5;
    font-size: 18px;
    font-weight: bold;
}

.contact_form li:nth-child(3) button[type='button'] {
    width: 172px;
    background-color: #00DDD5;
    color: white;
    margin-right: 60px;
}

.contact_form li:nth-child(3) button[type='reset'] {
    width: 156px;
    color: #00DDD5;
}

.map_box {
    height: 400px;
}