html,
body {
    margin: 0;
    padding: 0;
}

.page_pc {
    overflow: hidden;
    max-width: 1920px;
    min-width: 1200px;
    margin: 0 auto;
    color: #000;
}
.page_pc img {
    display: block;
    max-width: 100%;
    border: 0;
    /* filter: grayscale(100%); */
}

.page_pc * {
    margin: 0;
    padding: 0;
    border: 0;
    list-style: none;
    font-family: "Microsoft YaHei", Arial, Helvetica, sans-serif;
}


.page_pc h2 {
    font-size: 46px;
    line-height: 1.2em;
    font-weight: normal;
    width: 100%;
    text-align: left;
}
.page_pc p {
    font-size: 16px;
    line-height: 1.75em;
    font-weight: normal;
    text-align: justify;
    text-justify: inter-ideograph;
}
.page_pc h2+p {
    margin-top: 1em;
}

.page_pc .size13 {
    font-size: 13px;
}

.page_pc .width128 {
    position: relative;
    width: 66.666%;
    margin: 0 auto;
    overflow: hidden;
}

.page_pc .introduce_b {
    background-color: #000;
    padding: 3% 0;
}
.page_pc .introduce_b .t_box {
    color: #fff;
}
.page_pc .introduce_b .t_box h2 {
    text-align: center;
}
.page_pc .introduce_b .t_box .t_01 {
    text-align: center;
    padding: 0.8% 0 1%;
}
.page_pc .introduce_b .t_box .t_02 {
    text-align: center;
    font-size: 13px;
}


.page_pc .z200 {
    position: relative;
}

.page_pc .z200 .l_serialnumber {
    position: absolute;
    width: 100%;
    top: 10%;
    left: 8%;
}
.page_pc .z200 .r_serialnumber {
    position: absolute;
    width: 100%;
    top: 11%;
    left: 67.18%;
}
.page_pc .z200 .serialnumber li{
    display: flex;
    align-items: center;
    margin-bottom: 1.3%;
}
.page_pc .z200 .r_serialnumber li {
    margin-bottom: 1.7%;
}
.page_pc .z200 .serialnumber li .r_txt{
    margin-left: 1.56%;
}
.page_pc .z200 .serialnumber li .r_txt p {
    font-size: 26px;
    line-height: normal;
}
.page_pc .z200 .serialnumber li img {
    width: 4.5833%;
}
.page_pc .z200 h3.tit {
    position: absolute;
    font-size: 52px;
    font-weight: bold;
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
}
.page_pc .bigp {
    font-size: 32px;
    line-height: 1.375em;
    /* font-weight: bold; */
    text-align: justify;
    text-justify: inter-ideograph;
}

.page_pc .vbox01 .video {
    padding: 5% 0;
    position: relative;
}
.page_pc .vbox01 .video .v01 {
    width: 7.8906%;
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
}


.page_pc .sec01,.page_pc .sec01_r{
    position: relative;
    padding: 5% 0 0;
    background-color: #f6f6f6;
}

.page_pc .sec01 .pic {
    float: left;
    position: relative;
    width: 50%;
}
.page_pc .sec01 .tbox {
    position: absolute;
    width: 46%;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    padding: 0 3%;
    box-sizing: border-box;
}

.page_pc .sec01_r .pic {
    float: right;
    position: relative;
    width: 50%;
}
.page_pc .sec01_r .tbox {
    position: absolute;
    width: 44.6875%;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    box-sizing: border-box;
}

.page_pc .sec02{
    position: relative;
    padding: 5% 0;
    background-color: #dbdbdb;
}
.page_pc .sec02 .pic {
    float: left;
    position: relative;
    width: 50%;
}
.page_pc .sec02 .tbox {
    position: absolute;
    width: 47%;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    padding: 0 3%;
    box-sizing: border-box;
}


.page_pc .sec02_r{
    position: relative;
    padding: 5% 0;
    background-color: #dbdbdb;
}
.page_pc .sec02_r .pic {
    float: right;
    position: relative;
    width: 50%;
}
.page_pc .sec02_r .tbox {
    position: absolute;
    width: 44.6875%;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    box-sizing: border-box;
}

.page_pc .sec03 {
    padding: 5% 0;
}
.page_pc .sec03 .t_box h2 {
    text-align: center;
}

.page_pc .sec03 .t_box .t_01 {
    text-align: center;
    padding: 0.8% 0 2%;
}
.page_pc .sec03 .t_box .t_02 {
    text-align: center;
    padding-bottom: 5%;
}

.page_pc .sec04 {
    padding: 5% 0;
}


.page_pc .sec04 .t_img>div,.page_pc .sec04 .t_c .tbox {
    width:33.33%;
}
.page_pc .sec04 .t_img {
    display: flex;
    align-items: end;
}
.page_pc .sec04 .t_c {
    display: flex;
    margin-top: 5%;
}
.page_pc .sec04 img {
   margin: 0 auto;
}
.page_pc .sec04 .t_img:nth-child(2) >div,.page_pc .sec04 .t_c:nth-child(2) .tbox {
    width: 37.5%;
}
.page_pc .sec04 .t_c .tbox {
    padding: 0 2%;
}

.page_pc .sec04 .t_c .tbox  h2 {
    white-space: nowrap;
}
.page_pc .sec04 .t_c .tbox:nth-child(2) {
    border-right: 1px solid #000;
    border-left: 1px solid #000;
}

.page_pc .sec05 {
    background-color: #dbdbdb;
}
.page_pc .sec05 .width128 {
    padding: 5% 0;
}
.page_pc .sec05 .tbox {
    width: 76.5625%;
    margin: 4% auto 0;
}

.page_pc .size40 {
    font-size: 40px;
}


.page_pc .bzBox {
    background: #f1f4f9;
    padding: 5.5% 0 ;
}

.page_pc .bzBox .bzUl {
    width: 1200px;
    margin: 0 auto;
    /* counter-reset: num; */
}

.page_pc .bzBox .bzUl>li {
    font-size: 14px;
    line-height: 26px;
    color: #7b7b7b;
}

/* .page_pc .bzBox .bzUl>li::before {
    content: '*' counter(num)'. ';
    counter-increment: num;
} */
@media screen and (max-width:1800px) {
    .page_pc .introduce_b .t_box .t_02{
        font-size: 0.6666vw;
    }
    .page_pc h2 {
        font-size: 2.5vw;
    }
    .page_pc p {
        font-size: 0.8888vw;
    }
    .page_pc .size40 {
        font-size: 2.2222vw;
    }
    .page_pc .size13 {
        font-size: 0.7222vw;
    }
    .page_pc .z200 .serialnumber li .r_txt p {
        font-size: 1.4444vw;
    }
    .page_pc .bigp {
        font-size: 1.7777vw;
    }
    .page_pc .z200 h3.tit {
        font-size: 2.8888vw;
    }
}
@media screen and (max-width:1280px) {
    .page_pc .introduce_b .t_box .t_02{
        font-size: 12px;
    }
    .page_pc h2 {
        font-size: 30px;
    }
    .page_pc .size40 {
        font-size: 20px;
    }
    .page_pc p {
        font-size: 12.8px;
    }
    .page_pc .z200 .serialnumber li .r_txt p {
        font-size: 18.5px;
    }
    .page_pc .bigp {
        font-size: 23px;
    }
    .page_pc .z200 h3.tit {
        font-size: 37px;
    }
}


.page_mobile {
    /* display: none; */
    overflow: hidden;
}

.page_mobile * {
    margin: 0;
    padding: 0;
    list-style: none;
    border: 0;
    -webkit-text-size-adjust: none;
    font-family: Arial, Helvetica, sans-serif;
    text-align: justify;
    text-justify: inter-ideograph;
}

.page_mobile img {
    display: block;
    width: 100%;
}