html{
    overflow-x: hidden;
    overflow-y: auto;
}


.pc .box{
    position: relative;
    width: 100%;
    height: 100vh;
}
.pc .box video{
    position: absolute;
    top: 0;
    left: 0;
    object-fit: cover;
    width: 100vw;
    height: 100vh;
}
.pc .box .words{
    position: absolute;
    bottom: 100px;
    left: max(42px, calc(50% - 918px));
}
.pc .box .words .line{
    width: 46px;
    height: 4px;
    background-color: #2264dc;
}
.pc .box .words .tit1{
    color: #fff;
    font-size: 20px;
    font-family: 'Barlow-Regular';
    margin-top: 25px;
}
.pc .box .words .tit2{
    color: #fff;
    font-size: 72px;
    font-family: 'Barlow-Bold';
    line-height: 85px;
    margin-top: 50px;
}
.pc .box .words .tit3{
    color: #fff;
    font-size: 20px;
    font-family: 'Barlow-Regular';
    margin-top: 25px;
}
.pc .banner{
    display: block;
    width: calc(100% - 84px);
    max-width: 1836px;
    margin: 0 auto;
}
.pc .contents{
    width: 100%;
    height: 100%;
    padding-top: 75px;
    padding-bottom: 140px;
    background-color: #fff;
}
.pc .contents .title{
    font-family: 'Barlow-Regular';
    text-align: center;
    color: #333;
    font-size: 20px;
}
.pc .contents .donw_icon{
    width: 20px;
    height: 11px;
    
    display: block;
    margin-left: auto;
    margin-right: auto;

    margin-top: 20px;
}
.pc .contents .infos{
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
    justify-content: center;
    width: 100%;
    margin-top: 50px;
}
.pc .contents .infos a {
    width: calc((100% - 36px) / 2);
    box-sizing: border-box;
    display: block;
    margin-bottom: 40px;
}
.pc .contents .infos img{
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}
.pc .contents .infos .tit{
    font-family: 'Barlow-Regular';
    font-size: 30px;
    color: #000;
    margin-top: 25px;
}
.pc .contents .infos .location{
    font-family: 'Barlow-Regular';
    font-size: 20px;
    color: #7d7d7d;
    margin-top: 10px;
}
.pc .contents .more {
    width: 379px;
    height: 43px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    border-radius: 6px;
    background-color: #2264dc;
    color: #fff;
    font-family: 'Barlow-Regular';
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    cursor: pointer;
    border: none;
    margin-top: 50px;
    letter-spacing: 2px;
}


.pc .contents2{
    width: 100%;
    height: 100%;
    padding-top: 75px;
    padding-bottom: 140px;
    background-color: #000;
}
.pc .contents2 .title{
    font-family: 'Barlow-Regular';
    text-align: center;
    color: #fff;
    font-size: 20px;
}
.pc .contents2 .donw_icon{
    width: 20px;
    height: 11px;
    
    display: block;
    margin-left: auto;
    margin-right: auto;

    margin-top: 20px;
}
.pc .contents2 .infos{
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
    justify-content: center;
    width: 100%;
    margin-top: 50px;
}

.pc .contents2 .infos a {
    width: calc((100% - 36px) / 2);
    box-sizing: border-box;
    display: block;
    margin-bottom: 40px;
}
.pc .contents2 .infos img{
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}
.pc .contents2 .infos .tit{
    font-family: 'Barlow-Regular';
    font-size: 30px;
    color: #fff;
    margin-top: 25px;
}
.pc .contents2 .more {
    width: 379px;
    height: 43px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    border-radius: 6px;
    background-color: #2264dc;
    color: #fff;
    font-family: 'Barlow-Regular';
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    cursor: pointer;
    border: none;
    margin-top: 50px;
    letter-spacing: 2px;
}

/* 案例卡片入场动画：左列从左滑入、右列从右滑入，同时淡入 */
.pc .contents .infos a.anim,
.pc .contents2 .infos a.anim{
    opacity: 0;
    transform: translateX(-80px);
    transition: opacity 1s ease, transform 1s ease;
}
.pc .contents .infos a:nth-child(even).anim,
.pc .contents2 .infos a:nth-child(even).anim{
    transform: translateX(80px);
}
.pc .contents .infos a.anim.show,
.pc .contents2 .infos a.anim.show{
    opacity: 1;
    transform: translateX(0);
}

/* 案例图鼠标移入略微放大（在原尺寸内裁切） */
.pc .contents .infos .img_box,
.pc .contents2 .infos .img_box{
    overflow: hidden;
}
.pc .contents .infos .img_box img,
.pc .contents2 .infos .img_box img{
    display: block;
    transition: transform 0.6s ease;
}
.pc .contents .infos a:hover .img_box img,
.pc .contents2 .infos a:hover .img_box img{
    transform: scale(1.05);
}
.pc .competitive_advantages{
    width: 100%;
    height: 1342px;
    background-color: #000;
    position: relative;
}
.pc .competitive_advantages .title{
    font-size: 72px;
    color: #fff;
    font-family: 'Barlow-Regular';
    margin-top: 130px;
    text-transform: uppercase;
    line-height: 85px;
}
.pc .competitive_advantages .line{
    width: 100%;
    height: 2px;
    background-color: #2264dc;
    margin-top: 70px;
}
.pc .competitive_advantages .icon_bg{
    width: 786px;
    height: 1042px;
    position: absolute;
    top: -300px;
    left: -120px;
    background: url("../images/Index/icon_bg.png") no-repeat;
    background-size: 786px 1042px;

    opacity: 0;
    transform: scale(0);
    transition: opacity 1s ease, transform 1s ease;
}
.pc .competitive_advantages .icon_bg.show{
    opacity: 1;
    transform: scale(1);
}
.pc .competitive_advantages .icon_bg .icon{
    position: absolute;
    top: 420px;
    left: 162px;
    width: 200px;
    height: 200px;
    object-fit: cover;
}
.pc .competitive_advantages .infos{
    position: absolute;
    top: 100px;
    left: 50%;
    width: 80%;
}
.pc .competitive_advantages .infos .anim-group{
    opacity: 0; /* 默认透明度为 0 */
    /* 可选：可以添加位移效果，让动画更丰富 */
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}
.pc .competitive_advantages .infos .anim-group.show{
    opacity: 1;
    transform: translateY(0); /* 复位位移 */
}
.pc .competitive_advantages .infos .info{
    float: left;
    width: 30%;
    height: 270px;
    margin-right: 5%;
}
.pc .competitive_advantages .infos .info .num{
    color: #2264dc;
    font-family: 'Barlow-Bold';
    
    font-size: clamp(54px, 1vw, 72px);
}
.pc .competitive_advantages .infos .info .num span{
    font-size: 54px;
}
.pc .competitive_advantages .infos .info .word{
    margin-top: 20px;
    line-height: 36px;
    font-size: 30px;
    color: #fff;
    font-family: 'Barlow-Regular';
}
.pc .cooperative_partners{
    width: 100%;
    height: 1100px;
    background-color: #fff;
    position: relative;
}
.pc .cooperative_partners .title{
    font-size: 72px;
    color: #000;
    font-family: 'Barlow-Regular';
    margin-top: 130px;
    text-transform: uppercase;
    line-height: 85px;
}
.pc .cooperative_partners .line{
    width: 100%;
    height: 2px;
    background-color: #737373;
    margin-top: 70px;
}

.pc .cooperative_partners .scrolling-logos-container {
    margin-top: 20px;
    margin-bottom: 160px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: 1820px;
    height: 672px;
}
.pc .cooperative_partners .scrolling-logos-track {
    display: flex;
    flex-direction: row;
    width: max-content;
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    will-change: transform;
    user-select: none;
    pointer-events: none;
}
.pc .cooperative_partners .scrolling-logos-track img {
    width: 1820px;
    height: 672px;
    flex-shrink: 0;
    user-drag: none;
    -webkit-user-drag: none;
    pointer-events: none;
}




.phone{

}
.phone .box{
    margin-top: 0;
    width: 15rem;
    height: auto;
}
.phone .box .video{
    width: 15rem;
    height: 14.23rem;
    position: relative;
}
.phone .box .video video{
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: url("../videos/index.webp") center center no-repeat;
    background-size: 100% 100%;
    
}
.phone .box .video .line{
    width: 1.27rem;
    height: 0.11rem;
    background-color: #2264dc;
    position: absolute;
    bottom: 10rem;
    left: .8rem;
}
.phone .box .video .tit1{
    position: absolute;
    bottom: 9rem;
    left: .8rem;
    font-size: .5rem;
    color: #fff;
}
.phone .box .video .tit2{
    position: absolute;
    bottom: 3.7rem;
    left: .8rem;
    font-size: 1.2rem;
    line-height: 1.5rem;
    color: #fff;
    font-weight: bold;
}
.phone .box .video .tit3{
    position: absolute;
    bottom: 1.35rem;
    left: .8rem;
    font-size: .5rem;
    line-height: .7rem;
    color: #fff;
}
.phone .box .banner{
    width: 15rem;
    height: 10.95rem;
    position: relative;
}
.phone .box .banner img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
}

.phone .box .banner_fixed{
    position: fixed;
    bottom: 0;
    left: 0;
    width: 15rem;
    height: 10.95rem;
    z-index: -1;
    display: block;
}
.phone .box .banner_fixed img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.phone .box .infos_box{
    padding: 1.2rem .8rem;
    width: 13.4rem;
    height: auto;
    position: relative;
}
.phone .box .infos_box .title{
    width: 13.4rem;
    height: 1.8rem;
    line-height: 2.5rem;
    font-size: .5rem;
    color: #7d7d7d;
    text-align: center;
}
.phone .box .infos_box .donw_icon{
    width: .51rem;
    height: .26rem;
    position: relative;
    top: -.3rem;
    left: 50%;
    transform: translateX(-50%);
}
.phone .box .infos_box .imgs{
    width: 13.4rem;
    height: auto;
    position: relative;
}
.phone .box .infos_box .imgs img{
    margin-top: 1.15rem;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.phone .box .infos_box .imgs .tit{
    margin-top: .2rem;
    width: 13.4rem;
    font-size: .65rem;
    color: #000;
    line-height: .75rem;
}
.phone .box .infos_box .imgs .location{
    margin-top: .2rem;
    width: 13.4rem;
    font-size: .5rem;
    color: #7d7d7d;
}
.phone .box .infos_box .imgs .more{
    margin-top: 1.2rem;
    width: 13.4rem;
    height: 1.46rem;
    line-height: 1.46rem;
    font-size: .52rem;
    color: #fff;
    font-weight: bold;
    text-align: center;

    background-color: #2264dc;
    border-radius: .2rem;
    letter-spacing: .05rem;
}

.phone .box .infos_box.eexhibition_epc{
    background-color: #fff;
}
.phone .box .infos_box.digital_interaction_system{
    background-color: #000;
}
.phone .box .infos_box.digital_interaction_system .imgs .tit{
    margin-top: .2rem;
    width: 13.4rem;
    font-size: .65rem;
    color: #fff;
    line-height: .75rem;
}
.phone .box .infos_box.digital_video{
    background-color: #fff;
}
.phone .box .infos_box.product_model{
    background-color: #000;
}
.phone .box .infos_box.product_model .imgs .tit{
    margin-top: .2rem;
    width: 13.4rem;
    font-size: .65rem;
    color: #fff;
    line-height: .75rem;
}
.phone .box .infos_box.brand_services{
    background-color: #fff;
}


.phone .box .competitive_advantages{
    padding: 1.2rem .8rem;
    width: 13.4rem;
    height: 23.53rem;
    background-color: #000;
    position: relative;
}
.phone .box .competitive_advantages .title{
    margin-top: 1.6rem;
    width: 13.4rem;
    line-height: 1.2rem;
    font-size: 1.1rem;
    color: #fff;
    
    text-transform: uppercase;
}

.phone .box .competitive_advantages .line{
    width: 15rem;
    height: .03rem;
    background-color: #2264dc;
    margin-top: 1rem;
    margin-left: -.8rem;
}
.phone .box .competitive_advantages .icon_bg{
    width: 7.86rem;
    height: 10.42rem;
    position: absolute;
    top: 4.8rem;
    left: -1.2rem;
    background: url("../images/Index/icon_bg.png") no-repeat;
    background-size: 7.86rem 10.42rem;

    opacity: 0;
    transform: scale(0);
    transition: opacity 1s ease, transform 1s ease;
}
.phone .box .competitive_advantages .icon_bg.show{
    opacity: 1;
    transform: scale(1);
}
.phone .box .competitive_advantages .icon_bg .icon{
    position: absolute;
    top: 4.2rem;
    left: 2rem;
    width: 2rem;
    height: 2rem;
    object-fit: cover;
}
.phone .box .competitive_advantages .infos{
    position: absolute;
    top: 8.8rem;
    left: 4.6rem;
    width: 12rem;
}
.phone .box .competitive_advantages .infos .anim-group{
    opacity: 0; /* 默认透明度为 0 */
    /* 可选：可以添加位移效果，让动画更丰富 */
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}
.phone .box .competitive_advantages .infos .anim-group.show{
    opacity: 1;
    transform: translateY(0); /* 复位位移 */
}
.phone .box .competitive_advantages .infos .info{
    float: left;
    width: 4.4rem;
    height: 5rem;
    margin-right: 1.2rem;
}
.phone .box .competitive_advantages .infos .info .num{
    font-size: 1.2rem;
    color: #2264dc;
}
.phone .box .competitive_advantages .infos .info .num span{
    font-size: .54rem;
}
.phone .box .competitive_advantages .infos .info .word{
    margin-top: .3rem;
    line-height: 0.55rem;
    font-size: .52rem;
    color: #fff;
}


.phone .box .cooperative_partners{
    padding: 1.2rem .8rem;
    width: 13.4rem;
    height: 25.15rem;
    background-color: #fff;
    position: relative;
}
.phone .box .cooperative_partners .title{
    margin-top: 1.6rem;
    width: 13.4rem;
    line-height: 1.2rem;
    font-size: 1.1rem;
    color: #000;
    
    text-transform: uppercase;
}
.phone .box .cooperative_partners .line{
    width: 15rem;
    height: .03rem;
    background-color: #737373;
    margin-top: 1rem;
    margin-left: -.8rem;
}


.phone .box .cooperative_partners .scrolling-logos-container {
    margin-top: 2.9rem;
    margin-bottom: 3.7rem;
    position: relative;
    overflow: hidden;
    width: 15rem;
    margin-left: -.8rem;
    height: 13.45rem;
}
.phone .box .cooperative_partners .scrolling-logos-track {
    display: flex;
    flex-direction: row;
    width: max-content;
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    will-change: transform;
    user-select: none;
    pointer-events: none;
}
.phone .box .cooperative_partners .scrolling-logos-track img {
    width: 36.4rem;
    height: 13.45rem;
    flex-shrink: 0;
    user-drag: none;
    -webkit-user-drag: none;
    pointer-events: none;
}


.phone .box .fixed_box{
    width: 15rem;
    height: 48.68rem;
    background-color: #000;
    position: fixed;
    z-index: -2;
    top: 0;
    left: 0;
    display: none;
}
.phone .box .relative_box{
    width: 15rem;
    min-height: 48.68rem;
    height: auto;
    background: transparent;
    position: relative;
    overflow: hidden;
}