@media (max-width: 1400px) {
    .pro_list dd {
        padding: 27% 0;
    }
}

@media (max-width: 1200px) {
    .pro_list dd {
        padding: 23% 0;
    }
    .caseSlider .case_rt {
        padding-top: 4%;
    }
    .footer {
        padding-top: 30px;
    }
}

@media (max-width: 992px) {
    .about_cont {
        width: 100%;
    }
    .pro_list dd {
        padding: 18% 0;
    }
    .caseSlider .case_rt .case_cont h3 {
        margin-top: 3%;
    }
    .caseSlider .case_rt {
        padding: 4% 3% 0;
    }
    .caseSlider .slick-dots {
        padding: 0 3%;
        bottom: 16%;
    }
    .news_list {
        width: 29.66%;
    }
    .news_cont .news_list:nth-child(4n) {
        display: none;
    }
    .news_cont .news_list:nth-child(3n) {
        margin-right: 0;
    }
    .ewm {
        margin-left: 10px;
    }
    .copy {
        margin-top: 10px;
    }
    .section_one {
        padding: 55px 0;
    }
    .s_title h3 {
        font-size: 30px;
        line-height: 40px;
        margin-bottom: 5px;
    }
    .s_title p span {
        font-size: 16px;
    }
    .s_title p i {
        font-size: 18px;
    }
    .section_two {
        padding: 60px 0;
    }
    .section_four {
        padding: 70px 0;
    }
    .pro_list dd h3 {
        font-size: 18px;
    }
    .pro_list dd p {
        font-size: 16px;
    }
}

@media (max-width: 767px) {
    #wrap_index {
        padding-bottom: 60px;
    }
    .model-header {
        height: 60px;
        padding: 10px 0;
        background: rgba(0, 0, 0, .4);
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 20;
    }
    .model-header-logo {
        width: 80%;
        display: inline-block;
        height: 40px;
    }
    .model-header-logo a {
        display: block;
        height: 40px;
        position: relative;
    }
    .model-header-logo a img {
        max-width: 100%;
        max-height: 100%;
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        margin: auto;
    }
    .model-header .model-navbtn {
        float: right;
        width: 30px;
        text-align: right;
        height: 40px;
        margin-right: 10px;
        position: relative;
    }
    .model-header .model-navbtn img {
        width: 28px;
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        margin: auto;
    }
    .section_one {
        padding: 30px 0;
    }
    .s_title h3 {
        font-size: 20px;
        line-height: 24px;
        margin-bottom: 0;
    }
    .s_title p span {
        font-size: 12px;
    }
    .s_title p i {
        font-size: 15px;
        margin-top: -16px;
        height: 13px;
    }
    .about_cont {
        margin-top: 20px;
        line-height: 28px;
        font-size: 16px;
    }
    .more {
        font-size: 16px;
    }
    .opacity2,
    .opacity3 {
        z-index: 22;
    }
    .section_two {
        padding: 40px 0;
    }
    .pro_cont {
        margin-top: 30px;
    }
    .pro_list {
        width: 50%;
    }
    .pro_list dd {
        padding: 31% 0;
    }
    .pro_list dd h3 {
        font-size: 18px;
        line-height: 30px;
    }
    .pro_list dd p {
        font-size: 14px;
        line-height: 24px;
    }
    .pro_list dd a {
        height: 54px;
    }
    .pro_list:nth-child(2n-1) dt span {
        width: 40px;
        height: 40px;
        margin-left: -20px;
        top: -17px;
    }
     .pro_list:nth-child(2n-1) dt span i {
        border-top: 15px solid #fff;
        border-bottom: none;
        top: 15px;
		display:inline-block;
    }
   
    .pro_list:nth-child(2n-1):hover dt span i {
        border-top: 11px solid #4f6c6b;
        border-left: 7px solid transparent;
        border-right: 7px solid transparent;
		left:55%;
		
    }
  
	 .pro_list:nth-child(2n) dt span {
        width: 40px;
        height: 40px;
        margin-left: -20px;
        bottom: -17px;
    }
     .pro_list:nth-child(2n) dt span i {
        border-bottom: 15px solid #fff;
		border-top: none;
        bottom: 15px;
		display:inline-block;
    }
   
    .pro_list:nth-child(2n):hover dt span i {
        border-bottom: 11px solid #4f6c6b;
        border-left: 7px solid transparent;
        border-right: 7px solid transparent;
	    left:55%;
		
    }

    .threeBg {
        display: none;
    }
    .caseSlider .slick-slide {
        position: relative;
    }
    .caseSlider .case_lt {
        width: 100%;
        overflow: hidden;
    }
    .caseSlider .case_lt img {}
    .caseSlider .case_rt {
        width: 50%;
        height: 100%;
        position: absolute;
        right: 0;
        top: 0;
        z-index: 20;
        background: rgba(255, 255, 255, .6);
    }
    .caseSlider .case_rt .case_cont .case_txt {
        display: none;
    }
    .caseSlider .case_rt .db {
        height: 30px;
        overflow: hidden;
        position: absolute;
        right: 15px;
        bottom: 5%;
    }
    .caseSlider .case_rt .db .more {
        margin: 0;
        font-size: 16px;
    }
    .caseSlider .case_rt .case_cont h3 {
        margin: 18% 0 0;
        font-size: 18px;
        line-height: 24px;
        height: 48px;
        -webkit-line-clamp: 2;
    }
    .caseSlider .slick-dots {
        width: 50%;
        bottom: 27%;
    }
    .section_four {
        padding: 40px 0;
    }
    .news_cont {
        margin-top: 40px;
    }
    .news_list {
        width: 47%;
        margin-right: 0
    }
    .news_cont .news_list:nth-child(3n) {
        display: none;
    }
    .news_cont .news_list:nth-child(2n) {
        float: right;
    }
    .four_more .more {
        margin-top: 20px;
    }
    .news_list dd i {
        font-size: 20px;
    }
    .news_list dd span {
        font-size: 16px;
    }
    .news_list dd a {
        font-size: 16px;
    }
    .news_list dd .news_txt {
        font-size: 14px;
        line-height: 22px;
        height: 66px;
    }
    .news_list dd {
        padding: 15px 15px 20px;
    }
    .news_list:hover dd {
        margin-top: -37px;
    }
    .news_list dd span {
        top: 15px;
        left: 15px;
        right: 15px;
    }
    .news_list {
        border-radius: 15px;
    }
    .footM {
        background: rgba(79, 108, 107, .6);
        color: #fff;
        padding: 10px 15px;
        line-height: 20px;
        font-size: 14px;
        margin-bottom: -5px;
    }
    .footM a {
        color: #fff;
        font-size: 14px;
    }
    .caseSlider .slick-dots li button {
        font-size: 14px;
    }
    .caseSlider .slick-dots li button:before {
        font-size: 14px;
    }
    .caseSlider .slick-dots li button:after {
        font-size: 14px;
        margin-left: 2px;
    }
    .caseSlider .slick-dots li {
        margin: 0 2px;
    }
    .caseSlider .slick-dots li.slick-active button:before {
        font-size: 18px;
    }
    .caseSlider .slick-dots li.slick-active button {
        font-size: 18px;
    }
}

@media (max-width: 520px) {
    .pro_list dd {
        padding: 28% 0;
    }
}

@media (max-width: 400px) {
    .pro_list dd {
        padding: 25% 0;
    }
}

@media (max-width: 374px) {
    .pro_list dd {
        padding: 22% 0;
    }
    /*.caseSlider  .slick-dots{bottom:22%;}*/
}

@media (min-width: 768px) {}

@media (min-width: 992px) {}

@media (min-width: 1400px) {
    .container {
        width: 1370px;
    }
}