.banner_box {
    width: 100%;
    height: calc(60px + 25rem);
    background: url(../images/gywm.jpg) no-repeat;
    background-size: cover;
    position: relative;
}

.banner {
    max-width: 1420px;
    width: 85%;
    height: 100%;
    margin: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;

}

.banner_nav_box {
    width: 100%;
    border-bottom: 1px #ffffff48 solid;
    position: absolute;
    top: 0;
    height: calc(10px + 2rem);
    display: flex;
    flex-direction: column;
    justify-content: center;

}

.banner_nav {
    max-width: 1420px;
    width: 85%;
    margin: auto;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 0.5rem;
}

.banner_nav div {

    font-family: PINGFANG;
    font-weight: 300;
    font-size: calc(6px + 0.5rem);
    color: #FFFFFF;

}

.banner_text {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: calc(1px + 0.5rem);
}

.banner_text div:nth-of-type(1) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(10px + 1.5rem);
    color: #FEFEFE;
}

.banner_text div:nth-of-type(2) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(10px + 1rem);
    color: #FEFEFE;
}

.nav_box {
    width: 100%;

    height: calc(20px + 3rem);
    background: #FFFFFF;
    box-shadow: 0px 4px 6px 0px rgba(3, 15, 53, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.nav {
    max-width: 1420px;
    width: 85%;
    height: 100%;
    margin: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: calc(9px + 10rem);
}

.nav .navItem {
    height: 100%;
    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(10px + 0.5rem);
    color: #333333;
    display: flex;
    align-items: center;
}
.nav .navItem:hover{
    color: #D21010;
}
.nav a{
    position: relative;
}
.nav a:hover .nav_line{
    width: 100%;
    transition: .5s;
}
.nav_line{
    width: 0;
    height: 1px;
    background-color: #D21010;
    position: absolute;
    bottom: 0;
    left: 0;
}

.nav a {
    height: 100%;
}

.nav a:nth-of-type(1) .navItem {
    color: #D21010;
    border-bottom: 1px #D21010 solid;

}

.about_wmty_box {
    width: 100%;
    height: calc(65px + 50rem);
    background: url(../images/zjbg2.png) no-repeat;
    background-size: cover;
    padding-top: calc(38px + 5rem);
    position: relative;
}

.about_wmty {
    max-width: 1420px;
    width: 85%;
    margin: auto;


}

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

.about_wmty_text {
    width: 50%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: calc(4px + 0.5rem);
}

.about_wmty_text p:nth-of-type(1) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(2px + 1rem);
    color: #D21010;

}

.about_wmty_text p:nth-of-type(2) {
    width: 60%;
    font-family: PINGFANG;
    font-weight: 600;
    font-size: calc(10px + 1rem);
    color: #333333;

}

.about_wmty_text p:nth-of-type(3) {

    font-family: PINGFANG;
    font-weight: 500;
    font-size: calc(6px + 0.5rem);
    color: #404040;
    margin-top: calc(10px + 2rem);
    line-height: calc(2px + 1.5rem);

}
.about_wmty_text p:nth-of-type(3) span{
    font-weight: bold;
}

.about_wmty_text p:nth-of-type(4) {

    font-family: PINGFANG;
    font-weight: 500;
    font-size: calc(6px + 0.5rem);
    color: #404040;
    line-height: calc(2px + 1.5rem);

}

.about_wmty_num {
    width: 38%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.about_wmty_num div {
    width: calc(40px + 10rem);
    height: calc(30px + 5rem);
}

.about_wmty_num div:nth-of-type(1) {
    border-bottom: 1px #b9c6dbb7 solid;
    margin-top: 5%;
}

.about_wmty_num div:nth-of-type(2) {
    border-left: 1px #b9c6dbb7 solid;
    padding-left: 25%;
    width: 50.2%;
    margin-bottom: 5%;
}

.about_wmty_num div:nth-of-type(3) {
    width: 50%;
    border-right: 1px #b9c6dbb7 solid;
    margin-top: 5%;

}

.about_wmty_num div:nth-of-type(4) {
    height: calc(100px + 10rem);
    border-top: 1px #b9c6dbb7 solid;
    padding-left: 16%;
    padding-top: 5%;
}

.about_wmty_num div:nth-of-type(1) p:nth-of-type(1) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(10px + 0.5rem);
    color: #D21010;
    display: flex;
    align-items: flex-start;

}

.about_wmty_num div:nth-of-type(1) p:nth-of-type(1) span {
    font-size: calc(16px + 2rem);
    

}

.about_wmty_num div:nth-of-type(1) p:nth-of-type(2) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(10px + 0.5rem);
    color: #666666;

}

.about_wmty_num div:nth-of-type(2) p:nth-of-type(1) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(10px + 0.5rem);
    color: #D21010;
    display: flex;
    align-items: flex-start;

}

.about_wmty_num div:nth-of-type(2) p:nth-of-type(1) span {
    font-size: calc(16px + 2rem);

}

.about_wmty_num div:nth-of-type(2) p:nth-of-type(2) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(10px + 0.5rem);
    color: #666666;

}

.about_wmty_num div:nth-of-type(3) p:nth-of-type(1) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(10px + 0.5rem);
    color: #D21010;
    display: flex;
    align-items: flex-start;

}
.about_wmty_num div p span{
    font-weight: 600;
}

.about_wmty_num div:nth-of-type(3) p:nth-of-type(1) span {
    font-size: calc(16px + 2rem);

}

.about_wmty_num div:nth-of-type(3) p:nth-of-type(2) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(10px + 0.5rem);
    color: #666666;

}

.about_wmty_num div:nth-of-type(4) p:nth-of-type(1) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(10px + 0.5rem);
    color: #D21010;
    display: flex;
    align-items: flex-start;

}

.about_wmty_num div:nth-of-type(4) p:nth-of-type(1) span {
    font-size: calc(16px + 2rem);

}

.about_wmty_num div:nth-of-type(4) p:nth-of-type(2) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(10px + 0.5rem);
    color: #666666;


}

.about_wmty_num div:nth-of-type(1) p:nth-of-type(1) {
    position: relative;
    bottom: 22%;
}

.about_wmty_num div:nth-of-type(1) p:nth-of-type(2) {
    position: relative;
    bottom: 22%;
}



.about_wmty_bottom {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: calc(10px + 0.5rem);
    position: absolute;
    bottom: 6%;
    left: 19%;


}

.about_wmty_bottom .about_wmty_btn {
    width: calc(9px + 15rem);
    height: calc(6px + 3rem);
    background: #D5DCED;
    border-radius: 8px;
    opacity: 0.7;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: calc(8px + 1.5rem);
}

.about_wmty_bottom .about_wmty_btn img {
    width: calc(8px + 1.5rem);
}

.about_wmty_bottom .about_wmty_btn p {

    font-family: PINGFANG;
    font-weight: 600;
    font-size: calc(2px + 1rem);
    color: #414143;

}

.founder_box {
    width: 100%;
    height: calc(14px + 30rem);
    background: url(../images/founder.png) no-repeat;
    background-size: cover;
    margin-top: calc(29px + 10rem);
    margin-bottom: calc(75px + 5rem);
}

.founder_box .founder {
    max-width: 1420px;
    height: 100%;
    width: 85%;
    margin: auto;
    position: relative;
    display: flex;
    justify-content: flex-end;
}

.founder_pic {
    width: calc(148px + 20rem);
    position: absolute;
    bottom: 0;
    left: 0;
}

.founder_pic img {
    width: 100%;


}

.founder_intro_box {
    width: calc(108px + 30rem);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: calc(1px + 0.5rem);
}

.founder_intro_box p:nth-of-type(1) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(2px + 1rem);
    color: #D21010;

}

.founder_intro_box p:nth-of-type(2) {

    font-family: PINGFANG;
    font-weight: 600;
    font-size: calc(2px + 1.5rem);
    color: #333333;

}

.founder_intro_box p:nth-of-type(3) {

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(6px + 0.5rem);
    color: #333333;
    line-height: calc(2px + 1.5rem);
    margin-top: calc(5px + 0.25rem);
}

.founder_text {
    width: 100%;
    background: #0C308A;
    border-radius: 4px;
    opacity: 0.8;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: calc(3px + 0.5rem);
    padding: calc(2px + 1.5rem) 0;
    margin-top: calc(5px + 0.25rem);
}

.founder_text li {
    width: 40%;
    font-family: PINGFANG;
    font-weight: 300;
    font-size: calc(8px + 0.5rem);
    color: #FFFFFF;

    padding-left: 6%;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 0.25rem;


}

.founder_text li div {
    width: calc(3px + 0.25rem);
    height: calc(3px + 0.25rem);
    background-color: #ffffff;
    border-radius: 50%;
}

.founder_text li:nth-last-of-type(1) {
    width: 100%;
}



.video_box{
    width: 100%;
   
    margin-bottom: calc(50px + 5rem);
}
.video{
    max-width: 1420px;
    width: 85%;
    margin: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: calc(10px + 3rem);
    box-shadow: 0px 3px 16px 0px rgba(127, 144, 176, 0.16);

}

.video_left{
    width: 35%;
    margin-left: calc(5px + 2rem);
}
.video_title{

    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: calc(4px + 0.5rem);
   
}
.video_title p:nth-of-type(1){

    font-family: PINGFANG;
    font-weight: 400;
    font-size: calc(2px + 1rem);
    color: #D21010;

}
.video_title p:nth-of-type(2){
    font-family: PINGFANG;
    font-weight: 600;
    font-size: calc(10px + 1rem);
    color: #333333;
}

.video_right{
    width: 58%;
    height: calc(55px + 20rem);
    position: relative;
}
.video_right p{
     width: 100%;
    height: 100%;
}
.video_right p video{
    width: 100%;
    height: 100%;
}

.video_mask{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
   
    
}
.video_mask img:nth-of-type(1){
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.img_mask{
    width: 100%;
    height: 100%;
    background-color: #00000040;
    position: absolute;
    top: 0;
    left: 0;
}

.img_mask img:nth-of-type(1){
    width:  calc(30px + 2rem);
    height: calc(30px + 2rem);
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    margin: auto;
    transform: translate(-50%);
    cursor: pointer;
}





@media (max-width: 1100px) {
    .banner_nav_box {
        display: none;
    }

    .nav_box {
        overflow-x: scroll;
    }

    .nav {
        width: max-content;
        display: flex;
        justify-content: center;
        align-items: center;
        gap: calc(15px + 1rem);
    }

    .nav a div {
        width: auto;

    }





    .about_wmty_box {
        height: auto;
    }

    .about_wmty_top {
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
    }

    .about_wmty_text {
        width: 100%;
    }

    .about_wmty_text p:nth-of-type(1) {
        text-align: center;
        font-size: calc(16px + 1rem);
    }

    .about_wmty_text p:nth-of-type(2) {
        width: 100%;
        text-align: center;
    }

    .about_wmty_text p:nth-of-type(3) {
        width: 100%;
        text-align: justify;
        font-size: calc(10px + 1rem);
        line-height: calc(8px + 4rem);
    }

    .about_wmty_text p:nth-of-type(4) {
        width: 100%;
        text-align: justify;
        font-size: calc(10px + 1rem);
        line-height: calc(8px + 4rem);
    }

    .about_wmty_num {
        width: 100%;
        margin-top: calc(10px + 1rem);
    }

    .about_wmty_num div {
        width: 48%;
        border: none;
    }

    .about_wmty_bottom {
        position: static;
        margin-top: -50px;
        margin-bottom: calc(15px + 1rem);
    }

    .about_wmty_bottom .about_wmty_btn {
        width: 100%;
        height: 40px
    }

    .about_wmty_bottom .about_wmty_btn p {
        font-size: calc(10px + 1rem);
    }

    .founder_box {
        height: auto;
        padding: 30px 0;
        margin-bottom: calc(19px + 5rem);
    }

    .founder_box .founder {
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        height: auto;
    }


    .founder_pic {
        width: 100%;
        position: static;
    }

    .founder_intro_box {
        width: 100%;
    }

    .founder_intro_box p:nth-of-type(1) {
        font-size: calc(10px + 1rem);
        text-align: center;
        margin-top: calc(10px + 1rem);
    }

    .founder_intro_box p:nth-of-type(2) {
        font-size: calc(12px + 1rem);
        text-align: center;
    }

    .founder_intro_box p:nth-of-type(3) {
        font-size: calc(10px + 1rem);
        line-height: calc(10px + 3rem);
        text-align: justify;
    }

    .founder_text {
        padding: 15px 0;
    }

    .founder_text li {
        width: 100%;
        font-size: calc(10px + 1rem);
        line-height: calc(10px + 3rem);
    }
    
    .video{
          display: flex;
        flex-direction: column;
        justify-content: flex-start;
    }
    .video .video_left{
        width:100%;
    }
    
    .video .video_left .video_title {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin-bottom: calc(10px + 1rem);
    }
     .video .video_left .video_title p:nth-of-type(1){
         font-size: calc(10px + 1rem);
     }
        .video .video_left .video_title p:nth-of-type(2){
         font-size: calc(12px + 1rem);
        
     }
     .video .video_right{
        width:100%;
    }
}