body {
    background-color: #f7f8fa;
}

.index_banner {
    height: 480px;
}

.swiper-container {
    height: 100%;
}

.index_banner .swiper-slide img {
    width: 100%;
    object-fit: cover;
    min-height: 480px;
}

.swiper-slide {
    position: relative;
}

.swiper-slide-hover {
    width: 100%;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    color: white;
    text-align: center;
    opacity: 0;
    margin-top: -100px;
    transition: 2s;
}

.swiper-slide-active .swiper-slide-hover {
    opacity: 1;
    margin-top: 0px;
}

.hover_p1 {
    font-size: 44px;
    letter-spacing: 6px;
    line-height: 1.6;
}

.hover_p2 {
    font-size: 18px;
    line-height: 2;
    letter-spacing: 10px;
}

.hover_p3 {
    width: 100px;
    height: 2px;
    background-color: #0099ff;
    margin: 10px auto;
}

/*  */

.swiper_btn {
    padding-left: 143px;
    bottom: 4vw;
}

.swiper_btn a:nth-of-type(1) {
    background-color: white;
    color: #3b39ed;
}

.swiper_btn a:nth-of-type(2) {
    background-color: transparent;
    color: white;
    border: 1px solid white;
}

/*  */

.battle {
    width: 100%;
}

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

.battle_img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/*  */

.about_bg {
    width: 100%;
    background-color: white;
    overflow: hidden;
}

.about {
    width: 1200px;
    margin: 0 auto;
    padding-bottom: 90px;
}

.about_cont {
    display: flex;
    justify-content: space-between;
}

.about_item {
    text-align: center;
}

.about_img {
    width: 60px;
    height: 60px;
    margin: 0 auto;
}

.about_img img {
    width: 100%;
    object-fit: contain;
}

.about_p1 {
    font-size: 16px;
    color: #333333;
    line-height: 1;
    margin-top: 26px;
}

.battle_cont {
    width: 1200px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 120px;
}

.battle_cont p {
    width: 250px;
}

.battle_p1 {
    font-size: 18px;
    color: #666666;
    line-height: 1;
    display: flex;
    align-items: center;
    margin-bottom: 24px;
}

.battle_p1 img {
    width: 30px;
    height: 30px;
    object-fit: contain;
    margin-right: 8px;
}

.battle_p2 {
    font-size: 14px;
    color: #999999;
    line-height: 2;
}