.header { max-width: 1920px }
img { max-width: 100%; }
.video { text-align: center; border-style: none; position: relative; width: 100%; max-height: 1080px; height: 100vh; min-height: 600px; background-color: #fff; margin: 0px auto; }
    .video > img { max-width: 1920px; width: 100%; height: 100%; object-fit: cover; margin: 0px auto; }
    .video > .text { z-index: 1; position: absolute; top: 0px; left: 0px; right: 0px; bottom: 0px; display: flex; align-items: center; justify-content: center; flex-direction: column; }
        .video > .text > .box { text-align: left; max-width: 1800px; padding: 0px 10%; width: 100%; flex: 1; display: flex; align-items: center; }
            .video > .text > .box > .bl { flex: 1; max-width: 268px;margin-top:20%; }
                .video > .text > .box > .bl > p { font-size: 3rem; color: #fff; line-height: 1; font-family: BebasKai; }
                    .video > .text > .box > .bl > p > i { font-style: normal; background-color: #e50112; padding: 0px 10px; }
                .video > .text > .box > .bl > ul.links { text-align: left; display: flex; flex-wrap: wrap; margin-top: 2rem; align-items: stretch; }
                    .video > .text > .box > .bl > ul.links > li { width: 100%; margin-bottom: 1rem; text-align: left; }
                        .video > .text > .box > .bl > ul.links > li:last-child { margin-bottom: 0rem; }
                        .video > .text > .box > .bl > ul.links > li > a { width: 100%; font-family: "IBMPlexSans-Regular"; position: relative; display: inline-block; border-radius: 20px; height: 40px; line-height: 40px; padding: 0px 4rem; color: #000; background-color: #fff; font-size: 1.3rem; }
                            .video > .text > .box > .bl > ul.links > li > a > img { position: absolute; right: 20px; top: 8px; }


        .video > .text > .down { margin-bottom: 120px; height: 3.75rem; width: 3.75rem; border: 0.625rem solid rgba(255,255,255,0.6); border-radius: 60px; }
            .video > .text > .down > .mouse { position: relative; height: 2.5rem; width: 2.5rem; background-color: #fff; border-radius: 40px; }
                .video > .text > .down > .mouse::before { content: ''; width: 0.625rem; height: 0.625rem; position: absolute; top: 0.625rem; left: 50%; transform: translateX(-50%); background-color: #333; border-radius: 50%; opacity: 1; animation: wheel 1s infinite; -webkit-animation: wheel 1s infinite; }
 
@media only screen and (max-width:1280px) {
    .video > .text > .box > .bl > p { font-size: 2.5rem; }
}

@media only screen and (max-width:1024px) { 
    .video > .text > .box > .bl > ul.links > li > a { font-size: 1.15rem; padding: 0px 2rem; max-width: 320px; }
}

@media only screen and (max-width:960px) {
    .video > .text > .box > .bl > p { font-size: 2.15rem; }
}

@media only screen and (max-width:768px) {
    .video > .text > .box > .bl > p { font-size: 1.8rem; }
    .video > .text > .box > .br { width: 1%; }
    .video > .text > .down { margin-bottom: 50px; height: 3rem; width: 3rem; border: 0.5rem solid rgba(255,255,255,0.6); border-radius: 50px; }
        .video > .text > .down > .mouse { height: 2rem; width: 2rem; }
}
 

@media only screen and (max-width:480px) {
    .video > .text > .box > .bl > p { font-size: 1.35rem; }
}




@keyframes wheel {
    to { opacity: 0; top: 1.5rem }
}

@-webkit-keyframes wheel {
    to { opacity: 0; top: 1.5rem }
}




.yhtop { position: absolute; bottom: 0px; max-width: 1920px; left: 0px; right: 0px; margin: 0px auto; }
    .yhtop > img { width: 100%; object-fit: cover; }




.txttitle { position: relative; text-transform: uppercase; font-size: 3rem; color: #000; font-family: "BebasKai"; text-align: center; line-height: 1; }
    .txttitle > i { font-style: normal; position: relative; }
        .txttitle > i::after { z-index: -99; content: ''; position: absolute; left: 0; bottom: 0px; width: 100%; height: 0.625rem; background: #1c9dd6; }
    .txttitle.bai { color: #fff; }
    .txttitle.huangdi > i::after { background: #ff8b22; }
    .txttitle.hongdi > i::after { background: #e14657 }
.txtsubtitle { margin: 2rem auto; text-align: center; font-size: 1.25rem; max-width: 1100px; color: #000; font-family: 'IBMPlexSans-Regular'; }
    .txtsubtitle.bai { color: #fff; }
    .txtsubtitle.hong { color: #e14657; }



@media only screen and (max-width:1280px) {
    .txttitle { font-size: 2.5rem; }
}

@media only screen and (max-width:1024px) {
    .txttitle { font-size: 2.15rem; }
}

@media only screen and (max-width:960px) {
    .txttitle { font-size: 2rem; }
}

@media only screen and (max-width:768px) {
    .txttitle { font-size: 20px; }
        .txttitle > i::after { bottom: 5px; height: 5px; }
    .txtsubtitle { font-size: 16px; }
}





.listbg { width: 100%; }
.listbig { width: 100%; max-width: 1300px; padding: 2rem 3% 10rem 3%; margin: 0px auto; text-align: center; }
    .listbig > ul.list { display: flex; width: 100%; flex-wrap: wrap; flex-wrap: wrap; margin-top: 2rem; justify-content: stretch; }
        .listbig > ul.list > li { padding-bottom: 6rem; position: relative; width: 48%; margin: 1%; border-radius: 2rem; background-image: linear-gradient(to right bottom, #fff, #e1ecf2); text-align: left; }
            .listbig > ul.list > li .img { width: 100%; text-align: center; border-radius: 2rem; overflow: hidden; }
            .listbig > ul.list > li b { display: block; text-align: left; font-weight: bold; color: #000; padding: 1.5rem 1.5rem; font-family: 'IBMPlexSans-Regular'; font-size: 1.25rem; }
            .listbig > ul.list > li p { text-align: left; color: #000; padding: 0px 1.5rem; line-height: 1.4; font-family: 'IBMPlexSans-Regular'; font-size: 1rem; }
            .listbig > ul.list > li .more { margin-top: 1rem; margin-bottom: 2rem; margin-left: 1.5rem; line-height: 1; background-color: #fff; display: inline-block; border-radius: 3rem; padding: 10px 1.5rem; color: #000; font-family: 'IBMPlexSans-Regular'; font-size: 1rem; }
                .listbig > ul.list > li .more > img { margin-left: 1rem; line-height: 1; }

            .listbig > ul.list > li .labs { margin: 1rem auto; position: absolute; bottom: 0px; left: 1.5rem; right: 1.5rem; }
                .listbig > ul.list > li .labs > span { color: #2d3034; margin-right: 0.5rem; margin-bottom: 0.5rem; }
                    .listbig > ul.list > li .labs > span.ac { background-color: #bcd6f1; display: inline-block; padding: 5px 10px; font-size: 14px; }


@media only screen and (max-width:1024px) {
    .listbig { padding-top: 2rem; padding-bottom: 7rem; }
}

@media only screen and (max-width:768px) {
    .listbig > ul.cids > li > a { font-size: 16px; padding: 1rem 2rem; }
    .listbig { padding-top: 2rem; padding-bottom: 5rem; }
        .listbig > ul.list > li { width: 48%; }
            .listbig > ul.list > li b { font-size: 1.25rem; }
            .listbig > ul.list > li p { font-size: 14px; }
            .listbig > ul.list > li .more { font-size: 14px; }
            .listbig > ul.list > li .img { border-radius: 1rem; }
}


.blogbg { width: 100%; }
.blogbig { width: 100%; max-width: 1300px; padding: 2rem 3% 10rem 3%; margin: 0px auto; text-align: center; }
    .blogbig > .bloglist { width: 100%; margin: 0px auto; }
        .blogbig > .bloglist > ul { width: 100%; display: flex; flex-wrap: wrap; }
            .blogbig > .bloglist > ul > li { width: 48%; margin: 1% 1%; position: relative; }
                .blogbig > .bloglist > ul > li > .img { overflow: hidden; border-radius: 2rem; }
                    .blogbig > .bloglist > ul > li > .img > video { width: 100%; object-fit: cover; max-height: 300px; border-radius: 2rem; }

                .blogbig > .bloglist > ul > li > .vtitle { position: absolute; left: 1.5rem; top: 1rem; right: 1.5rem; }
                    .blogbig > .bloglist > ul > li > .vtitle > b { display: block; color: #fff; font-size: 1.375rem; text-align: left; }

.videomore { margin: 3rem auto; display: inline-block; }
    .videomore > a { border-radius: 4rem; border: solid 2px #979797; color: #000; font-size: 1rem; position: relative; display: flex; align-items: center; }
        .videomore > a > span { flex: 1; display: inline-block; padding: 0.5rem 5rem; }
        .videomore > a > i { width: 17px; margin-right: 1rem; }
.moreimg { width: 100%; margin: 0px auto; border-radius: 2.5rem; overflow: hidden; }

@media only screen and (max-width:1280px) {
    .moreimg { border-radius: 2rem; overflow: hidden; }
}

@media only screen and (max-width:768px) {
    .blogbig > .bloglist > ul > li { width: 100%; margin: 1% 0px; }
        .blogbig > .bloglist > ul > li > .img { border-radius: 1rem; }
            .blogbig > .bloglist > ul > li > .img > video { border-radius: 1rem; }
        .blogbig > .bloglist > ul > li > .vtitle > b { font-size: 16px; }
    .moreimg { border-radius: 1.5rem; }
}