body {
    margin-top: 0;
}

.cont {
    background: url("../images/contact/contact_bg1.jpg")/*tpa=https://www.cancon.com.cn/style/home/images/contact/contact_bg.jpg*/
    no-repeat bottom;
    background-size: auto;
    padding: 200px 0 50px;
    text-align: center;
    position: relative;
    min-height: 100vh
}

.cont_title p {
    color: #a8a8a8;
    font-size: 26px;
    font-weight: 100;
}

.cont_title p:before {
    content: ' ';
    display: block;
    width: 20px;
    height: 3px;
    background: #b01f24;
    margin: 6px auto 2px;
}

.cont_text {
    margin: 20px 0 30px;
}

.cont_text p {
    background: #f3f3f3;
    padding: 3px 20px;
    border-radius: 30px;
    width: 29%;
    margin: 0 auto;
}

.cont_list {
    width: 60%;
    margin: 0 auto;
    cursor: pointer;
    display: flex;
    flex-wrap: wrap;
}

.cont_list .list_company {
    width: 25%;
    border: 1px solid gainsboro;
    padding: 20px;
}

.cont_list .list_company:nth-child(2) {
    border-left: 0;
}

.cont_list .list_company:nth-child(3) {
    border-left: 0;
    border-right: 0;
}

.cont_list .list_company p {
    font-size: 12px;
    height: 36px;
    letter-spacing: 0.6px;
}

.cont_list .list_company h4 {
    margin: 6px 0;
}

.cont_list .list_company .company_img {
    width: 28px;
    height: 30px;
    margin: 0 auto 10px;
}

.leave {
    // width: 100px;
    // height: 30px;
    // line-height: 30px;
    // color: white;
    // background: #b01f24;
    // border-radius: 4px;
    // margin: 40px auto 0;
}


/*留言弹框*/

.leave_bg {
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    position: absolute;
    top: 0;
    left: 0;
    text-align: left;
    display: none;
    z-index: 999;
}

.leave_bg .leave_pop {
    position: absolute;
    width: 54%;
    height: 400px;
    top: 10%;
    left: 0;
    right: 0;
    // bottom: 0;
    margin: auto;
    background: white;
    border-top: 2px solid #b01f24;
    padding: 12px 50px;
}

.leave_bg .leave_pop h3 {
    color: gainsboro;
    font-size: 20px;
    margin: 6px 0 12px;
}

.leave_bg input,
.leave_bg textarea {
    border: 0;
    background: #ebebeb;
    border-radius: 4px;
    padding: 4px 12px;
    outline: none;
}

.leave_bg .leave_pop .leave_first .leave_name,
.leave_bg .leave_pop .leave_first .leave_mode {
    width: 50%;
    float: left;
}

.leave_first .leave_name p,
.leave_first .leave_mode p {
    display: inline-block;
    margin-right: 4px;
}

.leave_first .leave_name input,
.leave_first .leave_mode input {
    width: 64%;
    margin: 0 9px;
}

.leave_first .leave_name span,
.leave_first .leave_mode span,
.leave_theme span,
.leave_text span {
    color: #c60606;
    font-weight: bold;
}

.leave_theme {
    margin: 8px 0;
}

.leave_theme input {
    width: 82%;
    margin: 0 8px;
}

.leave_text textarea {
    width: 82%;
    height: 80px;
    margin: 0 9px;
    resize: none;
}

.clause {
    cursor: pointer;
    width: 54%;
    margin-left: 11%;
    margin-top: 10px;
    margin-bottom: 16px;
    line-height: 17px;
}

.clause p {
    display: inline-block;
    float: left;
}

.clause span {
    width: 18px;
    height: 18px;
    border: 1px solid grey;
    margin-right: 8px;
    float: left;
    position: relative;
}

.clause span img {
    display: none;
    position: absolute;
    top: 3px;
    left: 2px;
}

.clause a {
    color: #4f83bf;
}

.present {
    /*margin-left: 11%;*/
    width: 100%;
    text-align: center;
    margin: 26px auto;
}

.present .submit {
    width: 110px;
    padding: 6px 0;
    color: white;
    background: #b01f24;
    border: 0;
    border-radius: 4px;
}

.present .cancel {
    width: 110px;
    padding: 6px 0;
    color: white;
    background: #414141;
    border: 0;
    border-radius: 4px;
}

.foot {
    position: fixed;
}


/* 区域平台 */

.platform {
    max-width: 1460px;
    margin: 60px auto 40px;
    padding-left: 10px;
    padding-right: 10px;
    text-align: left;
    padding-bottom: 280px;
}

.platform .title {
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
}

.platform .platform-list {
    // display: flex;
}

.platform .platform-list .platform-item {
    width: 100%;
    display: flex;
    background: #fafafa;
    padding: 20px;
    margin-bottom: 30px;
}

.platform .platform-list .platform-item .item-left {
    flex: 1;
}

.platform .platform-list .platform-item .item-left .left-tit {
    width: 80%;
    font-size: 18px;
    padding-bottom: 16px;
    margin-bottom: 24px;
    border-bottom: 1px solid #dbdbdb;
    text-align: left;
}

.platform .platform-list .platform-item .item-left ul {
    width: 86%;
}

.platform .platform-list .platform-item .item-left ul li {
    font-size: 12px;
    margin-right: 8px;
    margin-bottom: 8px;
    display: inline-flex;
}

.platform .platform-list .platform-item .item-left ul li a {
    padding: 6px 24px;
    background: #efefef;
    color: black;
    outline: none;
}

.platform .platform-list .platform-item .item-left ul li.active a {
    background: #b01f24;
    color: white;
}

.platform .platform-list .platform-item .item-right {
    flex: 2;
    padding: 0 14px 8px 30px;
    margin-top: 20px;
    display: none;
}
.platform .platform-list .platform-item .item-right > p{
    line-height:25px;
    font-size:14px;
}
.platform .platform-list .platform-item .item-right ul {
    flex: 1;
    width:49%;
    float:left;
}

.platform .platform-list .platform-item .item-right li {
    font-size: 14px;
    margin-bottom: 5px;
}

.platform .platform-list .platform-item .item-right ul:nth-child(2) {
    border-left: 1px dashed gainsboro;
    padding-left: 10px;
}

@media (min-width: 1920px) {
    .platform .platform-list .platform-item .item-left ul li {
        font-size: 14px;
    }
}

@media (max-width: 1610px) {
    .platform {
        max-width: 1300px;
    }
}

@media screen and (max-width: 1400px) {
    .platform {
        max-width: 1200px;
    }
    .cont {
        background: url("../images/contact/contact_bg1.jpg")/*tpa=https://www.cancon.com.cn/style/home/images/contact/contact_bg.jpg*/
        no-repeat bottom;
        background-size: auto;
        height: auto;
        min-height: 790px;
    }
    .foot {
        position: relative;
    }
    .leave_bg .leave_pop {
        height: 360px;
    }
}

@media screen and (max-width: 1300px) {
    .cont_list {
        width: 76%;
    }
    .platform {
        padding-left: 50px;
        padding-right: 50px;
    }
}

@media screen and (max-width: 768px) {
    .platform {
        margin: 4% 2%;
        padding-left: 15px;
        padding-right: 15px;
    }
    .platform .platform-list .platform-item .item-left .left-tit {
        width: 100%;
    }
    .platform .platform-list .platform-item {
        display: block;
    }
    .platform .platform-list .platform-item .item-right {
        padding: 0;
        display: none;
    }
    .platform .platform-list .platform-item .item-right ul{
        width:100%;float:none
    }
    .platform .platform-list .platform-item .item-right ul:nth-child(2) {
        border-top: 1px dashed gainsboro;
        padding-top: 10px;
        padding-left: 0;
        border-left: none;
    }
}

@media screen and (max-width: 750px) {
    .cont {
        padding: 170px 0 48px;
        min-height: 1000px;
    }
    .cont_text {
        margin: 20px 0 12px;
    }
    .cont_text p {
        padding: 6px 13px;
        width: 96%
    }
    .cont_list {
        width: 94%;
    }
    .cont_list .list_company {
        width: 50%;
        border: none;
        position: relative;
    }
    .cont_list .list_company:nth-child(1) ::after,
    .cont_list .list_company:nth-child(3) ::after {
        content: '';
        width: 1px;
        height: 80px;
        background: gainsboro;
        position: absolute;
        top: calc(50% - 40px);
        right: 0;
    }
    .leave_bg {
        width: 100%;
        height: 91%;
        position: fixed;
        top: 58px;
        z-index: 9;
    }
    .leave_bg .leave_pop {
        width: 94%;
        height: 380px;
        padding: 13px;
    }
    .leave_bg .leave_pop h3 {
        text-align: center;
    }
    .leave_theme {
        margin: 12px 0;
    }
    .leave_first .leave_name input,
    .leave_first .leave_mode input {
        margin: 4px 0;
        width: 80%;
    }
    .leave_bg input,
    .leave_bg textarea {
        margin: 4px 0;
        width: 91%;
    }
    .clause {
        margin-left: 0;
        width: 94%;
    }
    .leave_first .leave_name span,
    .leave_first .leave_mode span,
    .leave_theme span,
    .leave_text span {
        margin-left: 10px;
    }
    .present {
        margin: 20px auto 0;
    }
}

@media screen and (max-width: 550px) {
    .foot {
        position: relative;
    }
}

@media screen and (max-width: 330px) {
    .leave_bg .leave_pop {
        height: 80%;
    }
    .clause {
        width: 100%;
    }
}

@media (min-width: 760px) and (max-width: 1030px) {
    .cont_list {
        width: 87%;
        margin: 0 auto;
    }
    .leave_bg .leave_pop {
        width: 80%;
        // height: 76%;
    }
}

@media screen and (max-width: 770px) {
    .cont_list {
        width: 94%;
    }
}

@media screen and (min-width: 1560px) {
    .present {
        margin: 26px auto;
    }
    .cont_title {
        margin-top: 10px;
    }
    .cont_text {
        margin: 30px 0 40px;
    }
    .cont_list .list_company {
        padding: 30px 20px 10px;
    }
    .cont_list .list_company .company_img {
        width: 32px;
        height: 36px;
    }
    .leave_bg .leave_pop {
        height: 400px;
        padding: 30px 50px;
    }
}

@media screen and (min-width: 1880px) {
    // .cont_list {
    //     width: 48%;
    // }
    .cont_list .list_company .company_img {
        width: 36px;
        height: 40px;
    }
    .leave_bg .leave_pop {
        height: 400px;
        padding: 40px 50px;
        width: 50%;
    }
}