@charset "UTF-8";

.banner {
    position: relative;
    width: 100%;
    height: 100vh;
    transition: 0.382s;
    background-color: #000000;
}

.banner .banner-list {
    position: absolute;
    width: 100%;
    height: 100%;
}

.banner .banner-list .banner-item {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    pointer-events: none;
    transition: .6s ease-in-out;
}

.banner .banner-list .banner-item[show] {
    opacity: 1;
}

.banner .bgImg,
.banner .bgVideo {
    transition: 0.382s;
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    /*居中填满*/
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    object-fit: cover;
    object-position: center;
}

.banner .bgImg.mobile {
    transition: .2s;
    opacity: 0;
}

.banner .bg-gray-linear {
    /*从上往下线性渐变背景*/
    background: linear-gradient(transparent, transparent 70%, #1e0013);
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    bottom: 0;
    z-index: 1;
}

.banner .banner-list .banner-item>.text {
    position: absolute;
    margin: auto;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: calc(100% - 200px);
    height: max-content;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    /*穿透阴影*/
    filter: drop-shadow(0px 10px 20px #00000099);
    transform: translateY(-50px);
    text-align: center;
    transition: 0.2s;
}

.banner .banner-list .banner-item>.text .t1 {
    font-weight: bold;
    font-size: 54px;
    /* margin-bottom: 40px; */
    font-family: Alimama_ShuHeiTi_Bold;
    word-wrap: break-word;
    word-break: break-all;
    white-space: break-spaces;
    transition: 0.2s;
    transform: translateY(80px);
}

.banner .banner-list .banner-item>.text .t1.pc {
    display: block;
}

.banner .banner-list .banner-item>.text .t1.mobile {
    display: none;
}

.banner .banner-list .banner-item>.text .t1 img {
    max-width: calc(100vw - 100px);
}

[isMobile] .banner {
    height: 50vh;
    margin-top: 50px;
}

[isMobile] .banner .banner-list .banner-item>.text .t1 img {
    max-width: calc(100vw / 3);
}

.banner .banner-list .banner-item>.text .t2 {
    font-weight: normal;
    font-size: 30px;
    font-family: "Microsoft YaHei";
    word-wrap: break-word;
    word-break: break-all;
    white-space: break-spaces;
    transition: 0.2s;
}

.banner .banner-list .banner-item>.text .arrowDown {
    opacity: 0;
}

.banner .banner-list .banner-item>.text[show] {
    transition: 0.382s;
    opacity: 1;
}

.banner .banner-list .banner-item>.text[show] .t1 {
    opacity: 1;
    animation: sg-animate-t1 0.8s ease 1 forwards;
}

@keyframes sg-animate-t1 {
    0% {
        opacity: 0;
        transform: translateY(150%);
    }

    100% {
        opacity: 1;
        transform: translateY(0%);
    }
}

.banner .banner-list .banner-item>.text[show] .t2 {
    animation: sg-animate-t2 0.8s ease 1 forwards;
    animation-delay: 0.3s;
}

@keyframes sg-animate-t2 {
    0% {
        opacity: 0;
        transform: translateY(150%);
    }

    100% {
        opacity: 1;
        transform: translateY(0%);
    }
}

.banner .banner-list .banner-item>.text[show] .arrowDown {
    animation: sg-animate-arrowDown 0.8s ease 1 forwards;
    animation-delay: 0.9s;
}

@keyframes sg-animate-arrowDown {
    0% {
        opacity: 0;
        transform: translateY(0%);
    }

    100% {
        opacity: 1;
        transform: translateY(100%);
    }
}

[isMobile] .banner .banner-list .banner-item>.text {
    z-index: 2;
    top: revert;
    bottom: 20px;
    width: calc(100% - 10px);
}

[isMobile] .banner .banner-list .banner-item>.text .t1 {
    font-size: 28px;
    line-height: 1.6;
    margin-bottom: 10px;
    transform: translateY(-30px);
}

[isMobile] .banner .banner-list .banner-item>.text .t1.pc {
    display: none;
}

[isMobile] .banner .banner-list .banner-item>.text .t1.mobile {
    display: block;
}

[isMobile] .banner .banner-list .banner-item>.text .t2 {
    font-size: 12px;
    line-height: 1.6;
    font-family: AlimamaFangYuanTiVF-Thin;
}

[isMobile] .banner .banner-list .banner-item .bgImg.pc {

    opacity: 0;

}

[isMobile] .banner .banner-list .banner-item .bgImg.mobile {

    opacity: 1;

}

/* 向下箭头 ----------------------------------------*/
.banner .arrowDown {
    width: 8px;
    height: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    position: absolute;
    margin: auto;
    left: 0;
    right: 0;
    bottom: 30px;
    z-index: 2;
    opacity: 0;
    pointer-events: auto;
    transition: .2s;
}

[isMobile] .banner .arrowDown {
    opacity: 1;
}

[isMobile] .banner .bg-gray-linear {
    background: linear-gradient(#00000000, #00000000 40%, #000000);
}

.banner .arrowDown img {
    width: 8px;
    height: 8px;
    object-position: center;
    object-fit: contain;
}

.banner .arrowDown img:first-of-type {
    animation-delay: 0.4s;
    animation: sg-animate-arrow-down1 1.3s linear infinite forwards;
}

@keyframes sg-animate-arrow-down1 {
    0% {
        opacity: 0;
        transform: translateY(-50%);
    }

    20% {
        opacity: 0;
        transform: translateY(-50%);
    }

    60% {
        opacity: 1;
        transform: translateY(0%);
    }

    61% {
        opacity: 1;
        transform: translateY(0%);
    }

    90% {
        opacity: 0;
        transform: translateY(100%);
    }

    100% {
        opacity: 0;
        transform: translateY(100%);
    }
}

.banner .arrowDown img:last-of-type {
    margin-top: -3px;
    animation: sg-animate-arrow-down2 1.3s linear infinite forwards;
}

@keyframes sg-animate-arrow-down2 {
    0% {
        opacity: 0;
        transform: translateY(-50%);
    }

    50% {
        opacity: 1;
        transform: translateY(0%);
    }

    51% {
        opacity: 1;
        transform: translateY(0%);
    }

    80% {
        opacity: 0;
        transform: translateY(100%);
    }

    100% {
        opacity: 0;
        transform: translateY(100%);
    }
}