.banner {
    width: 100%;
    position: relative;
}

.overflow {
    overflow-y: hidden;
}

.banner .banner_swiper {
    width: 100%;
}

.banner .banner_swiper .swiper-slide {
    width: 100%;
}

.banner .banner_swiper .swiper-slide .uisheji {
    min-width: 1200px;
    /* overflow-x: hidden; */
    position: relative;
}

.banner .banner_swiper .uisheji img {
    width: 100%;
    min-width: 1440px;
    image-rendering: pixelated;
}


.banner_box {
    position: relative;
    width: 1100px;
    height: 1px;
    margin: 0 auto;
    position: relative;
}

.banner_box .title {
    position: absolute;
    width: 670px;
    height: 78px;
    left: 0;
    bottom: 290px;
    font-style: normal;
    font-weight: 300;
    font-size: 56px;
    line-height: 78px;
    color: #FFFFFF;
    z-index: 9999;
}

.banner_box p {
    position: absolute;
    width: 595px;
    height: 99px;
    left: 0;
    bottom: 180px;
    font-style: normal;
    font-weight: 300;
    font-size: 24px;
    line-height: 136%;
    color: #FFFFFF;
    letter-spacing: 0.17em;
}

.banner_box p span {
    color: #FF3743;
    text-decoration: underline
}

.banner_box .cehngji {
    position: absolute;
    width: 244px;
    height: 78px;
    left: 15px;
    bottom: 60px;
    z-index: 99;
    cursor: pointer;
}

.banner_box .zhengshu {
    position: absolute;
    width: 245px;
    height: 73px;
    left: 258px;
    bottom: 64px;
    z-index: 99;
    cursor: pointer;
}

.banner_box .pdf {
    position: absolute;
    width: 505px;
    height: 46px;
    left: 5px;
    bottom: 234px;
    z-index: 99;
    cursor: pointer;
}

.banner_box .pdf02 {
    position: absolute;
    width: 505px;
    height: 46px;
    left: 5px;
    bottom: 180px;
    z-index: 99;
    cursor: pointer;
}

.banner_box .text {
    width: 144px;
    height: 34px;
    font-style: normal;
    font-weight: 500;
    font-size: 24px;
    line-height: 34px;
    text-align: center;
    color: #FFFFFF;
}

.part1 {
    width: 100%;
    height: 360px;
    overflow: hidden;
}

.part1 .pt1_con {
    width: 1100px;
    height: 100%;
    margin: 0 auto;
    overflow: hidden;
}

.part1 .pt1_con .pt1_title {
    width: 286px;
    height: 37px;
    background-image: url(../images/zhengshu/pt1_title.svg);
    background-size: cover;
    margin: 60px 0 15px 0;
}

.part1 .pt1_con .pt1_content {
    width: 1100px;
    height: 230px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.part1 .pt1_con .pt1_content img {
    width: 540px;
    height: 230px;
}


.part2 {
    width: 100%;
    height: 620px;
    overflow: hidden;
}

.part2 .pt2_con {
    width: 1100px;
    height: 100%;
    margin: 0 auto;
    overflow: hidden;
}

.part2 .pt2_con .pt2_title {
    width: 352px;
    height: 37px;
    background-image: url(../images/zhengshu/pt2_title.svg);
    background-size: cover;
    margin: 45px 0 15px 0;
}

.part2 .pt2_top,
.part2 .pt2_bottom {
    width: 1100px;
    height: 222px;
    margin-bottom: 24px;
    display: flex;
}

.part2 .pt2_top .pt2_text,
.part2 .pt2_bottom .pt2_text {
    width: 633px;
    height: 222px;
    background-image: url(../images/zhengshu/pt2_toptext.png);
    background-size: cover;
    margin-left: 24px;
    position: relative;
}

.part2 .pt2_bottom .pt2_text {
    background-image: url(../images/zhengshu/pt2_bottomtext.png);
    background-size: cover;
}

.part2 .pt2_top .pt2_text .youximeishu,
.part2 .pt2_bottom .pt2_text .dianzijingji {
    position: absolute;
    left: 0;
    bottom: 6px;
    width: 90px;
    height: 24px;
    cursor: pointer;
}

.part2 img {
    width: 382px;
    height: 222px;
}

.part2 .pt2_top span {
    color: #666666;

}


.part3 {
    width: 100%;
    height: 360px;
    overflow: hidden;
}

.part3 .pt3_con {
    width: 1100px;
    height: 100%;
    margin: 0 auto;
    overflow: hidden;
}

.part3 .pt3_con .pt3_title {
    width: 313px;
    height: 37px;
    background-image: url(../images/zhengshu/pt3_title.svg);
    background-size: cover;
    margin: 10px 0 15px 0;
}

.part3 .pt3_con .pt3_content {
    width: 1100px;
    height: 230px;
    display: flex;
    justify-content: space-between;
}



.part3 img {
    width: 540px;
    height: 230px;
}

.part3 img.img001 {
    cursor: pointer;
}

.part4 {
    width: 100%;
    height: 530px;
    position: relative;
    overflow: hidden;
}



.part4 .pt4_con {
    width: 1100px;
    height: 100%;
    margin: 0 auto;
}

.part4 .pt4_con .pt4_title {
    width: 226px;
    height: 37px;
    background-image: url(../images/zhengshu/pt4_title.svg);
    background-size: cover;
    margin: 10px 0 15px 0;
}

.part4 .pt4_content {
    width: 1100px;
    height: 426px;
}

.part4 .pt4_content .pt3_swiper {
    width: 1100px;
    height: 426px;
}

.part4 .pt4_content .pt3_swiper .swiper-slide {
    width: 540px;
    height: 426px;
    background-image: url(../images/zhengshu/pt4_swiper01.png);
    background-size: cover;
    cursor: pointer;
    position: relative;
}

.part4 .pt4_content .pt3_swiper .swiper-slide01 {
    width: 540px;
    height: 398px;
}

.part4 .pt4_content .pt3_swiper .swiper-slide02 {
    background-image: url(../images/zhengshu/pt4_swiper02.png);
    background-size: cover;
}

.part4 .pt4_content .pt3_swiper .swiper-slide03 {
    background-image: url(../images/zhengshu/pt4_swiper03.png);
    background-size: cover;
}

.part4 .pt4_content .pt3_swiper .swiper-slide03 .fuzhicehngg {
    position: absolute;
    width: 183px;
    height: 42px;
    background-color: #12121373;
    border-radius: 17px;
    bottom: 111px;
    right: 163px;
    letter-spacing: 3px;
    font-size: 20px;
    text-align: center;
    line-height: 42px;
    color: #FFFFFF;
    opacity: 0;
    transition: opacity .8s ease;
}

.part4 .pt4_content .pt3_swiper .swiper-slide03 .fuzhicehngg.show {
    opacity: 1;
    z-index: 9999;
    transition: opacity .8s ease;
}

.pt4_content .boxjt {
    width: 1100px;
    height: 1px;
    position: relative;
    margin: 0 auto;
}

.part4 .pt3_btn_prev,
.part4 .pt3_btn_next {
    position: absolute;
    width: 64px;
    height: 64px;
    top: 50%;
    transform: translateY(-436%);
    z-index: 88;
    cursor: pointer;
}

.part4 .pt3_btn_next {
    background: url(../images/index/pt3_next.svg) top center no-repeat;
    background-size: contain;
    right: -120px;

}

.part4 .pt3_btn_prev {
    background: url(../images/index/pt3_prev.svg) top center no-repeat;
    background-size: contain;
    left: -120px;

}

.part4 .swiper-button-disabled {
    opacity: .2;
}













.mark,
.mark_02 {
    position: fixed;
    width: 100%;
    height: 100vh;
    margin: auto;
    background: rgba(0, 0, 0, 0.7) !important;
    top: 0;
    display: flex;
    overflow: hidden;
    opacity: 0;
    z-index: -9;
    /* transition: opacity .6s ease; */
    justify-content: center;
    align-items: center;
}

.mark.show,
.mark_02.show {
    opacity: 1;
    z-index: 9999999999999999;
    /* transition: opacity .6s ease; */
}

.mark .mark_text,
.mark_02 .mark_text02 {
    position: relative;
    width: 900px;
    height: 680px;
    background: #FFFFFF;
    border-radius: 34px;
    overflow: auto;
    padding-right: 3px;
}

.mark .mark_text .mark_textbox,
.mark_02 .mark_text02 .mark_text02box {
    width: 897px;
    height: 640px;
    margin: 20px auto;
    overflow: auto;
}

.mark .mark_text .return,
.mark_02 .mark_text02 .return02 {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 25px;
    height: 25px;
    cursor: pointer;
    background: url(../images/zhengshu/tetrunarrow.png) top center no-repeat;
    background-size: contain;
}

.mark .mark_text .title,
.mark_02 .mark_text02 .title {
    width: 469px;
    height: 30px;
    margin: 25px auto 40px;
    font-style: normal;
    font-weight: 600;
    font-size: 24px;
    color: #333333;
}

.mark_02 .mark_text02 .title {
    width: 518px;
}

.mark .mark_text .yiji,
.mark_02 .mark_text02 .yiji {
    width: 240px;
    height: 51px;
    margin-bottom: 24px;
    background: url(../images/zhengshu/mark_text_bg.png) top center no-repeat;
    background-size: contain;
    text-align: center;
    font-style: normal;
    font-weight: 700;
    font-size: 16px;
    line-height: 51px;
    color: #333333;
}

.mark .mark_text .erji,
.mark_02 .mark_text02 .erji {
    margin-bottom: 8px;
    font-style: normal;
    font-weight: 600;
    font-size: 16px;
    color: #333333;
    margin-left: 40px;

}

.mark .mark_text .text,
.mark_02 .mark_text02 .text {
    width: 822px;
    margin-left: 40px;
    font-style: normal;
    font-weight: 400;
    font-size: 16px;
    line-height: 28px;
    color: #666666;
    margin-bottom: 32px;
}

.mark .mark_text .text span,
.mark_02 .mark_text02 .text span {
    margin-left: 28px;
    display: block;
}



.mark .mark_text .mark_textbox::-webkit-scrollbar,
.mark_02 .mark_text02 .mark_text02box::-webkit-scrollbar {
    /*滚动条整体样式*/
    width: 8px;
    margin: 26px 17px 26px 0;
    /*高宽分别对应横竖滚动条的尺寸*/
}

.mark .mark_text .mark_textbox::-webkit-scrollbar-track,
.mark_02 .mark_text02 .mark_text02box::-webkit-scrollbar-track {

    border-radius: 20px;
    margin: 26px 17px 26px 0;
}

/* 滚动条滑块 */
.mark .mark_text .mark_textbox::-webkit-scrollbar-thumb,
.mark_02 .mark_text02 .mark_text02box::-webkit-scrollbar-thumb {
    background: #EAEAEA;
    border-radius: 20px;
    margin: 26px 17px 26px 0;

}







@media screen and (max-width: 1600px) {
    .banner_box .pdf {
        position: absolute;
        width: 420px;
        height: 46px;
        left: 89px;
        bottom: 189px;
        z-index: 99;
        cursor: pointer;
    }

    .banner_box .pdf {
        position: absolute;
        width: 353px;
        height: 37px;
        left: 127px;
        bottom: 189px;
        z-index: 99;
        cursor: pointer;
    }

    .banner_box .pdf02 {
        position: absolute;
        width: 396px;
        height: 32px;
        left: 120px;
        bottom: 149px;
        z-index: 99;
        cursor: pointer;
    }


    .banner_box .cehngji {
        position: absolute;
        width: 225px !important;
        height: 67px !important;
        left: 93px !important;
        bottom: 48px !important;
        z-index: 99;
        cursor: pointer;
    }

    .banner_box .zhengshu {
        position: absolute;
        width: 211px !important;
        height: 62px !important;
        left: 320px !important;
        bottom: 50px !important;
        z-index: 99;
        cursor: pointer;
    }
}


@media screen and (max-width:1440px) {

    .mark .mark_text .mark_textbox, .mark_02 .mark_text02 .mark_text02box {
        width: 898px;
        height: 474px;
        margin: 20px auto;
        overflow: auto;
    }

    .banner_box .pdf {
        position: absolute;
        width: 353px;
        height: 37px;
        left: 229px;
        bottom: 176px;
        z-index: 99;
        cursor: pointer;
    }

    .banner_box .pdf02 {
        position: absolute;
        width: 396px;
        height: 32px;
        left: 217px;
        bottom: 139px;
        z-index: 99;
        cursor: pointer;
    }

    .mark .mark_text,
    .mark_02 .mark_text02 {
        height: 515px !important;
    }

 

    .banner_box .cehngji {
        position: absolute;
        width: 192px !important;
        height: 60px !important;
        left: 228px !important;
        bottom: 46px !important;
        z-index: 99;
        cursor: pointer;
    }

    .banner_box .zhengshu {
        position: absolute;
        width: 205px !important;
        height: 60px !important;
        left: 422px !important;
        bottom: 46px !important;
        z-index: 99;
        cursor: pointer;
    }

    .part4 .pt3_btn_next {
        background: url(../images/index/pt3_next.svg) top center no-repeat;
        background-size: contain;
        right: -71px;

    }

    .part4 .pt3_btn_prev {
        background: url(../images/index/pt3_prev.svg) top center no-repeat;
        background-size: contain;
        left: -71px;

    }

}