body,
div,
ul,
li,
a,
img {
    margin: 0;
    padding: 0;
}

ul {
    list-style-type: none;
}

a {
    text-decoration: none;
    color: inherit;
}


/* 平板 */

@media screen and (min-width:500px) and (max-width:1180px) {
    .home_header {
        max-height: 475px;
    }
    .header_center {
        max-width: 1024px;
        max-height: 400px;
    }
    /* 首页 */
    .header_top_center,
    .about_content,
    .product_items_center,
    .programme_items,
    .company,
    .case_center,
    .partner_cente {
        max-width: 1024px;
    }
    .product_center_center,
    .contact_center,
    .cooperation,
    .partner_center_items {
        max-width: 1004px;
        margin: 0 auto;
    }
    .header_logo,
    .header_logo img {
        max-width: 200px;
        max-height: 20px;
        margin-left: 10px;
    }
    .header_tab ul {
        font-size: 14px;
        font-family: PingFang SC;
        font-weight: bold;
    }
    /* 首页关于我们 */
    .about_content img {
        max-width: 460px;
        max-height: 500px;
        margin-left: 10px;
        margin-right: 20px;
    }
    .about_us_content {
        max-width: 500px;
        margin-right: 20px;
    }
    /* 首页产品与服务 */
    .product_center_title,
    .product_center_title1 {
        margin-left: 10px;
    }
    .product_rotation {
        max-width: 700px;
        min-height: 328px;
    }
    .product_rotation img {
        height: 348px;
    }
    .product_center_text {
        max-width: 296px;
    }
    .product_center_end_items {
        max-width: 175px;
    }
    /* 首页解决方案 */
    .programme_items_title_chinese,
    .programme_items_title_english {
        margin-left: 10px;
    }
    .programme_items {
        max-height: 600px;
        max-width: 1004px;
    }
    .programme_items_centers {
        max-width: 294px;
        max-height: 294px;
    }
    /* 首页成功案例 */
    .case_title,
    .partner_title {
        margin-left: 10px;
    }
    .company_img img {
        max-width: 320px;
        max-height: 320px;
    }
    .cooperation_center img {
        max-width: 136px;
        max-height: 85px;
    }
    /* 产品与服务 */
    .ProductServices {
        max-width: 1004px;
    }
    .ProductServices_left_title {
        max-width: 164px;
    }
    .ProductServices_tab {
        max-width: 162px;
    }
    .ProductServices_right {
        max-width: 810px;
    }
}


/*头部导航栏*/

.header_top {
    display: flex;
    justify-content: center;
    height: 80px;
    /* border-bottom:solid 1px #B5B5B5; */
    background: #FFFFFF;
}

.header_top_center {
    width: 1200px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 auto;
}

.header_logo {
    width: 260px;
    height: 29px;
}

.header_tab ul {
    overflow: hidden;
    /* 清除浮动 */
}

.header_tab li {
    float: left;
    /* 使li内容横向浮动，即横向排列  */
    padding: 25px;
}

.header_tab ul {
    font-size: 16px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #333333;
}

.header_tab ul .hover {
    color: #E60012;
    border-bottom: 4px solid rgb(230, 0, 18);
}

.header_center {
    height: 400px;
    margin: 0 auto;
    text-align: center;
}

.header_center_box_title {
    font-size: 48px;
    font-family: PingFang SC;
    font-weight: bold;
    color: #FFFEFE;
    padding-top: 125px;
    margin-bottom: 20px;
}

.header_center_box_title1 {
    font-size: 30px;
    font-family: PingFang SC;
    font-weight: 400;
    color: #FFFEFE;
    margin-bottom: 55px;
}

.header_center_box_img {
    width: 36px;
    height: 36px;
    border: 1px solid #FFFFFF;
    border-radius: 50%;
}


/*公司介绍*/

.contact {
    height: 276px;
    background: #161616;
    border-bottom: solid 1px #FFFFFF;
    display: flex;
    align-items: center;
}

.contact_center {
    width: 1200px;
    display: flex;
    justify-content: start;
    margin: 0 auto;
}

.introduce,
.product_service,
.success_cases {
    width: 199px;
}

.contact .title,
.product_service .title,
.success_cases .title {
    font-size: 16px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #FFFEFE;
    text-align: left;
}

.introduce ul li a,
.product_service ul li a,
.success_cases ul li a {
    margin-right: 31px;
    margin-top: 7px;
    margin-bottom: 7px;
    font-size: 12px;
    font-family: PingFang SC;
    font-weight: 400;
    color: #B5B5B5;
    text-decoration: none;
}

.line {
    width: 1px;
    height: 170px;
    background: #FFFFFF;
    margin-right: 81px;
}


.right_center {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.right_title {
    font-size: 16px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #FFFFFF;
    white-space: nowrap;
}

.right_title1 {
    margin-top: 40px;
}

.right_center_img {
    width: 120px;
    height: 133px;
    padding-left: 20px;
}

.right_text {
    font-size: 12px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #B4B4B4;
    white-space: nowrap;
    margin-top: 14px;
}

.right_end_text {
    display: flex;
    justify-content: space-between;
    width: 518px;
    font-size: 14px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #FFFFFF;
    white-space: nowrap;
    margin-top: 39px;
}

.phone {
    display: flex;
    align-items: center;
}

.mail {
    display: flex;
    align-items: center;
}

.phone_img {
    margin-right: 23px;
}

.mail_img {
    margin-right: 28px;
}


/*产品与服务内容*/

.ProductServices {
    width: 1200px;
    display: flex;
    justify-content: space-between;
    margin: 0 auto;
    margin-top: 52px;
    margin-bottom: 52px;
}

.ProductServices_left_title {
    width: 194px;
    height: 112px;
    background: #D80202;
    text-align: center;
    flex-direction: column;
}

.ProductServices_chinese {
    font-size: 22px;
    font-family: PingFang SC;
    font-weight: bold;
    color: #FFFEFE;
    padding-top: 29px;
}

.ProductServices_english {
    margin-top: 19px;
    font-size: 11px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #FFFEFE;
    padding-bottom: 32px;
}

.ProductServices_tab {
    width: 192px;
    border: 1px solid #E5E5E5;
}

.ProductServices_tab ul {
    list-style-type: none;
    background: #FFFFFF;
}

.ProductServices_tab ul li {
    display: block;
    font-size: 16px;
    font-family: PingFang SC;
    font-weight: 400;
    color: #666666;
    line-height: 20px;
    border-bottom: 1px solid;
    border-bottom-color: #E5E5E5;
    background: url("../img/ProductServices/icon1.png") 90% 21% no-repeat;
    background-size: 10px 10px;
    padding-left: 39px;
    margin-top: 16px;
    padding-bottom: 16px;
}

.ProductServices_tab ul .hover {
    color: #D80202;
    background: url("../img/ProductServices/icon2.png") 90% 21% no-repeat;
}

.ProductServices_right {
    width: 909px;
    /* margin-left: 95px; */
}

.ProductServices_right_title {
    white-space: nowrap;
    text-align: center;
    font-size: 22px;
    font-family: PingFang SC;
    font-weight: 800;
    color: #D80202;
    margin-top: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #C5C5C5;
}

.ProductServices_right_info {
    font-size: 16px;
    font-family: PingFang SC;
    font-weight: 400;
    color: #171717;
    line-height: 24px;
}

.wisdom_title {
    white-space: nowrap;
    font-size: 16px;
    font-family: PingFang SC;
    font-weight: bold;
    color: #D80202;
    line-height: 24px;
}

.wisdom_title_one {
    white-space: nowrap;
    font-size: 18px;
    font-family: PingFang SC;
    font-weight: bold;
    color: #D80202;
    line-height: 24px;
}

.wisdom_title_img {
    text-align: center;
}


/*产品与服务头部*/

.ProductServices_title {
    font-size: 40px;
    font-family: PingFang SC;
    font-weight: bold;
    color: #FFFEFE;
    padding-top: 130px;
    margin-bottom: 20px;
}

.ProductServices_title1 {
    font-size: 24px;
    font-family: PingFang SC;
    font-weight: 400;
    color: #FFFEFE;
    margin-bottom: 65px;
}

.ProductServices_img {
    width: 36px;
    height: 36px;
    border: 1px solid #FFFFFF;
    border-radius: 50%;
}


/*底部栏*/

.end {
    height: 66px;
    background: #161616;
    display: flex;
    justify-content: center;
    align-items: center;
}

.end .text {
    width: 413px;
    height: 13px;
    font-size: 12px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #666666;
}