.section {
    margin-bottom: 64px;
}

.main-slider {
    margin: 16px 0;
}
.main-slider img {
    width: 57vw;
    height: 19vw;
    border-radius: 4px;
    object-fit: cover;
} 
.main-slider .swiper-pagination {
    position: static;
}
.main-slider .swiper-pagination-bullet {
    border-radius: 0;
    width: 21px;
    height: 4px;
}
.main-slider .swiper-pagination-bullet-active {
    background: linear-gradient(to right, var(--orange-gradation-before), var(--orange-gradation-after));
}

.lead-text {
    font-weight: bold;
    text-align: center;
    padding: 16px 0 24px;
    background-image: url(../img/top/lead-text-bg.png);
    background-size: auto 95%;
    background-repeat: no-repeat;
    background-position: center;
    letter-spacing: 0.05em;
}
.lead-text p {
    position: relative;
    display: inline-block;
    -webkit-text-stroke: 5px var(--white);
    filter: drop-shadow(0px 0px 2px rgba(0,0,0,0.3));
    letter-spacing: 0;
}
.lead-text p::after {
    position: absolute;
    inset: 0;
    content: attr(data-text);
    background: linear-gradient(
        to right, 
        #9B7400, 
        #BA8F0D, 
        #9B7400
    );
    -webkit-text-stroke: initial;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.lead-text p:nth-of-type(1) {
    font-size: 32px;
    font-weight: 900;
}
.lead-text p:nth-of-type(2) {
    font-size: 34px;
    font-weight: 700;
    font-family: var(--font-outfit);
}

.signup-box {
    padding: 24px;
    border-radius: 18px;
    background: var(--bg-gray);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 12px 15px 30px rgba(0, 0, 0, 0.08);
}
.signup-box p {
    font-weight: bold;
}
.signup-box span {
    color: var(--green);
}
.signup-box .btn:nth-of-type(1) {
    margin: 24px 0 12px;
}

.flow .title--sup {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: bold;
    margin-bottom: 12px;
}

.about {
    color: var(--white);
    padding: 28px;
    padding-bottom: 0;
    border-radius: 18px;
    background-image: url(../img/top/about-bg.png);
    background-position: center;
    background-size: cover;
}
.about .title--en {
    background: linear-gradient(to bottom, #858585, #12171D);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: left;
    opacity: 0.7;
}
.about .title--sub {
    font-size: 12px;
}
.about .desc {
    margin: 28px 0 12px;
    text-align: center;
    line-height: 28px;
    letter-spacing: 0.05em;
}
.about .desc span {
    color: var(--yellow);
}

.company {
    position: relative;
}
.company::after {
    content: "";
    position: absolute;
    bottom: 0;
    right: -165px;
    width: 362px;
    height: 292px;
    background-image: url(../img/top/company-bg.png);
    background-size: 100%;
    background-repeat: no-repeat;
}

body {
    position: relative;
}
body::before, body::after {
    content: "";
    position: absolute;
    background-size: 100%;
    z-index: -1;
}

@media screen and (max-width: 400px) {
    body::before {
        width: 172px;
        height: 441px;
        right: 0;
        top: 310px;
        background-image: url(../img/top/gradation-bg-right--sp.png);
    }
    body::after {
        width: 258px;
        height: 530px;
        left: 0;
        bottom: 1320px;
        background-image: url(../img/top/gradation-bg-left--sp.png);
    }
}

@media screen and (min-width: 768px) { 
    body::before {
        width: 303px;
        height: 859px;
        right: 0;
        top: 380px;
        background-image: url(../img/top/gradation-bg-right--pc.png);
    }
    body::after {
        width: 498px;
        height: 859px;
        bottom: 830px;
        left: 0;
        background-image: url(../img/top/gradation-bg-left--pc.png);
    }
    .section {
        margin-bottom: 88px;
    }
    .title--left {
        font-size: 36px;
    }
    .main-slider {
        padding: 0 12px !important;
        margin: 25px 0 64px;
    }
    .main-slider img {
        height: 6vw;
    }
    .signup-box {
        width: 680px;
        margin: 0 auto;
    }
    .about {
        padding: 48px;
        position: relative;
    }
    .about .title--en {
        font-size: 62px;
    }
    .about .desc {
        text-align: left;
        margin: 40px 0 0;
    }
    .about .cards {
        position: absolute;
        right: 0;
        bottom: 0;
        width: 340px;
        transform: translate(135px, 70px);
    }
    .company::after {
        right: -85px;
    }
}
@media screen and (min-width:920px) { 
    .about .cards {
        transform: translate(40px, 65px);
    }
}