body {
    background-color: #FFF;
}

.banner-arrow-bottom{
    position: absolute;
    top:calc(100vh - 39px - 50px);
    width:15px;
    height:8px;
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    left:50%;
    margin-left:-7.5px;
    z-index: 2;
    animation: upanddown 2s linear infinite;
}
@keyframes upanddown {
    0%{ transform: translateY(0);}
    25%{ transform: translateY(10px);}
    50%{ transform: translateY(0);}
    75%{ transform: translateY(-10px);}
    100%{ transform: translateY(0);}
}
.top-nav {
    height: 70px;
    background-color: #FFF;
}

.top-nav div {
    background-position: center;
    background-size: contain;
    background-position: center;
}

.top-nav .logo1 {
    position: absolute;
    top: 22px;
    left: 15px;
    width: 55px;
    height: 25px;
    background-image: url('https://oss.howvin.com/images/index_logo1.png');

}

.top-nav .logo2 {
    position: absolute;
    top: 21px;
    left: 78px;
    width: 114px;
    height: 27px;
    background-image: url('https://oss.howvin.com/images/index_logo2.png');
}

.top-nav .logo3 {
    width: 23px;
    height: 23px;
    background-image: url('https://oss.howvin.com/images/index_logo3.png');
    top: 23px;
    right: 21px;
    position: absolute;
}

.top-nav .logo-language {
    width: 23px;
    height: 23px;
    position: absolute;
    right: 66px;
    top: 23px;

}

.top-nav .logo-language.EN {
    background-image: url('https://oss.howvin.com/images/index_logoEN.png');
}

.top-nav .line {
    width: 1px;
    height: 34px;
    background: #000000;
    position: absolute;
    right: 54px;
    top: 18px;
}

.indexSwiper {
    position: relative;
    width: 100vw;
    /* height: calc(100vh - 70px); */
    height: 100vh;
    z-index: 0;
}

.swiper-slide.indexSwiper1 {
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.texts {
    margin: 67vh auto 0;
    position: relative;
    z-index: 1;
}

.texts .t {
    font-size: 28px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #FFFFFF;
    text-align: center;
    line-height: 1.5;
}

.texts .btn {
    margin: 14px auto;
    width: 120px;
    height: 35px;
    border: 1px solid #FFF;
    font-size: 14px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
}

.shangpin-list {
    height: 100vh;
    width: 100vw;
}

.banner-products {
    padding: 6vw 0 0 3.3vw;
    background-color: #FFF;
    display: table;
    position: relative;
    width: 100vw;
    box-sizing: border-box;
}

.banner-products .item {
    display: inline-block;
    background-color: rgb(230, 230, 230);
    width: 29vw;
    height: 29vw;
    margin: 0 3vw 3vw 0;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.popular-recommendation {
    background-color: #FFF;
}


.index-column-title {
    margin-top: 54px;
    font-size: 21px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #010101;
    line-height: 1;
    position: relative;
    text-align: center;
    background-color: #FFF;
}

.index-column-title::before,
.index-column-title::after {
    position: absolute;
    content: '';
    width: 9px;
    height: 1px;
    background-color: #010101;
    top: 50%;
    margin-top: -0.5px;
}

.index-column-title::after {

    left: calc(50% + 2em + 11px);
}

.index-column-title::before {
    left: calc(50% - 2em - 20px);
}

.index-column-title2 {
    font-size: 12px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #010101;
    line-height: 1;
    margin-top: 10px;
    text-align: center;
}

.popular-recommendation .items {
    margin-top: 25px;

}

.popular-recommendation .items .line {
    display: flex;
    align-items: baseline;
    justify-content: center;
}

.popular-recommendation .items .line .item {
    background-position: center;
    background-size: contain;
    position: relative;
    margin-right: 10px;
}

.popular-recommendation .items .line .item .name {
    position: absolute;
    right: 16px;
    bottom: 13px;
    font-size: 12px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #000000;
    line-height: 1;
}

.popular-recommendation .items .line .item:last-child {
    margin-right: 0;
}

.popular-recommendation .items .line .product1 {
    width: 99px;
    height: 41px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_1.png');
}

.popular-recommendation .items .line .product2 {
    width: 96px;
    height: 41px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_2.png');
}

.popular-recommendation .items .line .product3 {
    width: 93px;
    height: 41px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_3.png');
}

.popular-recommendation .items .line .product4 {
    width: 79px;
    height: 38px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_4.png');
}

.popular-recommendation .items .line .product5 {
    width: 87px;
    height: 43px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_5.png');
}

.popular-recommendation .items .line .product6 {
    width: 123px;
    height: 38px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_6.png');
}

.popular-recommendation .items .line .product7 {
    width: 115px;
    height: 35px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_7.png');
}

.popular-recommendation .items .line .product8 {
    width: 87px;
    height: 44px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_8.png');
}

.popular-recommendation .items .line .product9 {
    width: 99px;
    height: 43px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_9.png');
}

.popular-recommendation .items .line .product10 {
    width: 108px;
    height: 41px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_10.png');
}

.popular-recommendation .items .line .product11 {
    width: 95px;
    height: 47px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_11.png');
}

.popular-recommendation .items .line .product12 {
    width: 127px;
    height: 44px;
    background-image: url('https://oss.howvin.com/images/popular/popular_product_12.png');
}

.hot-new-products {
    padding-left: 13px;
    background-color: #FFF;
    height: 395px;
}

.hotNewProductsSwiper {
    padding-top: 24px;

}

.hot-new-products .swiper-slide {
    width: 260px;
}

.hot-new-products .item {
    width: 260px;
    display: inline-block;
}

.hot-new-products .item .thumbnail {
    width: 260px;
    background-color: rgb(230, 230, 230);
    height: 260px;
}

.hot-new-products .item .name {
    font-size: 14px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #000000;
    text-align: center;
    white-space: nowrap;
    line-height: 1;
    margin-top: 18px;
}

.hot-new-products .item .price {
    line-height: 1;
    margin-top: 19px;
    font-size: 14px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #000000;
    text-align: center;
    white-space: nowrap;
}

.hot-new-products .btn-more {
    width: 155px;
    height: 37px;
    background-color: #000000;
    font-size: 14px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 20px auto 0;

}

.series-combination {
    padding: 0 13px;
    position: relative;
    overflow: hidden;
    margin-top: 125px;
}

.series-combination-item {
    position: relative;
}

.series-combination .thumbnail {
    height: 124px;
    background-position: center;
    background-size: cover;
    border-radius: 5px;
}
.series-combination .items .item{
    position: relative;
    margin-bottom:10px;
}
.series-combination .items .item .name {
    position: absolute;
    line-height: 1;
    top: 23px;
    right: 25px;
    font-size: 17px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #FFFFFF;
    white-space: nowrap;
}

.series-combination .items .item .name2 {
    position: absolute;
    line-height: 1;
    top: 49px;
    right: 25px;
    font-size: 12px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #FFFFFF;
    white-space: nowrap;
}

.series-combination .items .item .btn-more {
    width: 41px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #FFF;
    border-radius: 8px;
    font-size: 9px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #FFFFFF;
    position: absolute;
    top:86px;
    right:24px;
}

.swiper.seriesCombinationSwiper {
    margin-top: 24px;
    height: 438px;
}

.all-items .items .item.hover {
    color: #0A0A0A;
    border-bottom: 3px solid #0A0A0A;
}

.swiper.allItemsSwiper {
    margin-top: 24px;
    height: 72px;
}

.all-items .items .item {
    width: 30px;
    font-size: 14px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #9A9A9A;
    box-sizing: border-box;
    height: calc(52px + 20px);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1.5;
    border-bottom: 3px solid transparent;
    writing-mode: vertical-lr;
    letter-spacing: 5px;
    text-align: center;
}

.all-items .items .item:nth-child(2n) {
    border-left: 0;
}

.all-items .items .item:nth-child(2n+1) {
    border-right: 0;
}

.all-items .products {
    display: table;
}

.all-items .products .product:nth-child(1),
.all-items .products .product:nth-child(2) {
    border-top: 2px solid #E6E6E6;
}

.all-items .products .product:nth-child(2n) {
    border-right: 0;
}

.all-items .products .product {

    border-right: 2px solid #E6E6E6;
    border-bottom: 2px solid #E6E6E6;
    width: 50vw;
    display: inline-block;
    box-sizing: border-box;
}

.all-items .products .product .thumbnail {
    width: calc(50vw - 2px);
    height: calc(50vw - 2px);
}

.all-items .products .product .name {
    font-size: 14px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #000000;
    line-height: 1.5;
    text-align: center;
    margin-top: 11px;
}

.all-items .products .product .price {
    font-size: 14px;
    font-family: GenSenRounded TW;
    font-weight: normal;
    color: #000000;
    margin-top: 12px;
    margin-bottom: 11px;
    text-align: center;
}

.project-cases .items {
    position: relative;
    width: 100vw;
    height: 500px;
    overflow: hidden;
}

.project-cases .items .item {
    opacity: 0;
    position: absolute;
    background-repeat: no-repeat;
    background-size: contain;
    background-position: center;
    animation-name: project-cases;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
}

.project-cases .items .item.pic1 {
    top: 30px;
    left: 50%;
    margin-left: calc(-104px - 7px);
    width: 207px;
    height: 140px;
    z-index: 1;
    animation-delay: 4.9s;

    animation-duration: 17s;
}

.project-cases .items .item.pic1 {
    background-image: url('https://oss.howvin.com/images/index_animation/index_animation_pic1.png');
}


.project-cases .items .item.pic2 {
    top: 50px;
    left: 50%;
    margin-left: calc(-104px + 70px);
    width: 207px;
    z-index: 2;
    height: 199px;
    animation-duration: 21s;

}

.project-cases .items .item.pic2 {
    background-image: url('https://oss.howvin.com/images/index_animation/index_animation_pic2.png');
}

.project-cases .items .item.pic3 {
    top: 102px;
    left: 50%;
    margin-left: calc(-84px + 7px);
    width: 167px;
    z-index: 3;
    animation-delay: 0.6s;
    height: 244px;
    animation-duration: 19s;
    background-image: url('https://oss.howvin.com/images/index_animation/index_animation_pic3.png');
}

.project-cases .items .item.pic4 {
    top: 200px;
    left: 50%;
    margin-left: calc(-118px + 27px);
    width: 236px;
    z-index: 4;
    animation-delay: 3s;
    height: 155px;
    animation-duration: 16s;
    background-image: url('https://oss.howvin.com/images/index_animation/index_animation_pic4.png');
}

.project-cases .items .item.pic5 {
    top: 307px;
    left: 50%;
    margin-left: calc(-99px + 70px);
    animation-delay: 2.2s;
    width: 197px;
    height: 187px;
    animation-duration: 22s;
    background-image: url('https://oss.howvin.com/images/index_animation/index_animation_pic5.png');
}

.project-cases .items .item.pic6 {
    top: 366px;
    left: 50%;
    margin-left: calc(-100px - 17px);
    width: 200px;
    animation-delay: 1.6s;
    animation-duration: 23s;
    height: 140px;
    background-image: url('https://oss.howvin.com/images/index_animation/index_animation_pic6.png');
}

.project-cases .items .item.pic7 {
    top: 30px;
    left: 50%;
    margin-left: calc(-104px - 7px);
    width: 207px;
    height: 140px;
    z-index: 1;
    animation-delay: 4.9s;

    animation-duration: 17s;
}

.project-cases .items .item.pic7 {
    background-image: url('https://oss.howvin.com/images/index_animation_pic7.png');
}


.project-cases .items .item.pic8 {
    top: 50px;
    left: 50%;
    margin-left: calc(-104px + 70px);
    width: 207px;
    z-index: 2;
    height: 199px;
    animation-duration: 21s;

}

.project-cases .items .item.pic8 {
    background-image: url('https://oss.howvin.com/images/index_animation_pic8.png');
}

.project-cases .items .item.pic9 {
    top: 102px;
    left: 50%;
    margin-left: calc(-84px + 7px);
    width: 167px;
    z-index: 3;
    animation-delay: 0.6s;
    height: 244px;
    animation-duration: 19s;
    background-image: url('https://oss.howvin.com/images/index_animation_pic9.png');
}

.project-cases .items .item.pic10 {
    top: 200px;
    left: 50%;
    margin-left: calc(-118px + 27px);
    width: 236px;
    z-index: 4;
    animation-delay: 3s;
    height: 155px;
    animation-duration: 16s;
    background-image: url('https://oss.howvin.com/images/index_animation_pic10.png');
}

.project-cases .items .item.pic11 {
    top: 307px;
    left: 50%;
    margin-left: calc(-99px + 70px);
    animation-delay: 2.2s;
    width: 197px;
    height: 187px;
    animation-duration: 22s;
    background-image: url('https://oss.howvin.com/images/index_animation_pic11.png');
}

.project-cases .items .item.pic12 {
    top: 366px;
    left: 50%;
    margin-left: calc(-100px - 17px);
    width: 200px;
    animation-delay: 1.6s;
    animation-duration: 23s;
    height: 140px;
    background-image: url('https://oss.howvin.com/images/index_animation_pic12.png');
}


@keyframes project-cases {
    0% {
        transform: translateX(80vw);
        opacity: 1;
    }

    100% {
        transform: translateX(-80vw);
        opacity: 1;
    }
}

.project-cases .items .item.pic7.pic-delay {
    animation-delay: 10.8s;
}

.project-cases .items .item.pic8.pic-delay {
    animation-delay: 5.1s;
}

.project-cases .items .item.pic9.pic-delay {
    animation-delay: 7.9s;
}

.project-cases .items .item.pic10.pic-delay {
    animation-delay: 9.5s;
}

.project-cases .items .item.pic11.pic-delay {
    animation-delay: 9.6s;
}

.project-cases .items .item.pic12.pic-delay {
    animation-delay: 7.4s;
}