main{
    background: #FFFDF6;
}
a{
    text-decoration: none;
}
._inner{
    width: 80%;
    max-width: 1080px;
    margin: 0 auto;
}
img{
    width: 100%;
}
._flex{
    display: flex;
    justify-content: space-between;
    align-items: start;
}
._flex-text{
    width: 65%;
}
._flex-text h3{
    position: relative;
    width: fit-content;
    color: #452C04;
    text-align: center;
    /* H2 */
    -webkit-text-stroke-width: 0.3px;
    -webkit-text-stroke-color: #452C04;
    font-family: "BIZ UDMincho";
    font-size: 18px;
    font-style: normal;
    font-weight: 400;
    line-height: 230%; /* 32.4px */
    letter-spacing: 1.08px;
    margin-bottom: 32px;
}
._flex-text h3::before{
    content: '';
    background-image: url(../img/plan-dec1.webp);
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    display: block;
    width: 100%;
    aspect-ratio: 275/8;
    position: absolute;
    top: 0;
    left: 0;
    transform: translateY(-100%);
}
._flex-text h3::after{
    content: '';
    background-image: url(../img/plan-dec2.webp);
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    display: block;
    width: 100%;
    aspect-ratio: 275/8;
    position: absolute;
    bottom: 0;
    left: 0;
    transform: translateY(100%);
}
._flex-text > p{
    margin-bottom: 16px;
}

._flex-img{
    width: 30%;
}

._title{
    color:#452C04;
    text-align: center;
    -webkit-text-stroke-width: 0.3px;
    -webkit-text-stroke-color: #452C04;
    font-family: "BIZ UDMincho";
    font-size: clamp(1.5rem, 1.379rem + 0.52vw, 2rem);
    font-style: normal;
    font-weight: 400;
    line-height: 40px; /* 125% */
    letter-spacing: 3.84px;
    margin-bottom: 100px;
}

h2{
    color:#452C04;
    -webkit-text-stroke-width: 0.3px;
    -webkit-text-stroke-color: #452C04;
    font-family: "BIZ UDMincho";
    font-size: clamp(1.5rem, 1.379rem + 0.52vw, 2rem);
    font-style: normal;
    font-weight: 400;
    line-height: 40px; /* 125% */
    letter-spacing: 3.84px;
}
p{
    color:#452C04;
    /* H2 */
    font-family: "BIZ UDMincho";
    font-size: 16px;
    font-style: normal;
    font-weight: 400;
    line-height: 180%; /* 32.4px */
    letter-spacing: 1.08px;
}

/* mv */
.mv{
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: url(../img/mv-bg.webp);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
.mv img{
    width: 40%;
    max-width: 450px;
    padding-left: 50%;
}

/* about */
.about{
    width: 100%;
    padding: 100px 0;
    overflow: hidden;
}
.about ._inner{
    position: relative;
    width:80%;
    max-width: 1200px;
    gap: 10%;
}
.about ._inner::before{
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
    background-image: url(../img/about-dec1.webp);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: block;
    width: 30%;
    aspect-ratio: 509/221;
}
.about ._inner::after{
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    transform: translateX(100%);
    background-image: url(../img/about-dec2.webp);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: block;
    width: 30%;
    aspect-ratio: 509/221;
}
.about-img{
    width: 50%;
}
.about-text{
    width: 40%;
    display: flex;
    justify-content: right;
    align-items: start;
    margin-top: 40px;
}
.about-text p{
    writing-mode: vertical-rl;
    text-orientation: upright;
    font-family: "BIZ UDMincho";
    font-size: 18px;
    line-height: 260%;
    letter-spacing: 0.1em;
}
.about-text h2{
    writing-mode: vertical-rl;
    text-orientation: upright;
    font-family: "BIZ UDMincho";
    line-height: 2;
    letter-spacing: 0.1em;
    margin-right: 10%;
    margin-left: 10%;
}

/* plan */
.plan{
    width: 100%;
    padding: 100px 0;
}
.plan ._inner{
    background-image: url(../img/plan-bg.webp);
    background-size: contain;
    padding: 60px 6%;
    box-sizing: border-box;
}
.plan ._flex{
    align-items: center;
    margin-bottom: 90px;
}
.info{
    display: flex;
    justify-content: left;
    align-items: center;
    gap: 18px;
    margin-bottom: 16px;
}
.info p:first-of-type{
    position: relative;
    display: flex;
    align-items: center;
    gap: 4px;
}
.info p:first-of-type::before{
    content: '';
    background-image: url(../img/info-dec.webp);
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    display: block;
    width: 16px;
    aspect-ratio: 1/1;
}

.plan-btn{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 48px;
    border-radius: 40px;
    background-image: url(../img/btn-bg.webp);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    text-decoration: none;
}
.plan-btn p{
    color: #FFFDF6;
    text-align: center;
    /* H2 */
    -webkit-text-stroke-width: 0.3px;
    -webkit-text-stroke-color: #FFFDF6;
    font-family: "BIZ UDMincho";
    font-size: 18px;
    font-style: normal;
    font-weight: 400;
    line-height: 180%; /* 32.4px */
    letter-spacing: 1.08px;
    text-decoration: none;
}

/* course */
.course{
    width: 100%;
    padding: 100px 0;
}
.course ._flex{
    align-items: stretch;
    margin-bottom: 90px;
    background-color: #F7F3E7;
    border-radius: 40px;
    overflow: hidden;
}
._reverse._flex{
    flex-direction: row-reverse;
}
.course-img{
    width: 50%;
}
.course-text{
    width: 45%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: clamp(1.25rem, 0.947rem + 1.29vw, 2.5rem);
}
.course-text img{
    max-width: 72px;
    margin-bottom: 16px;
}
.course-text h3{
    color: #452C04;
    /* HI */
    -webkit-text-stroke-width: 0.3px;
    -webkit-text-stroke-color: #452C04;
    font-family: "BIZ UDMincho";
    font-size:  clamp(1.5rem, 1.379rem + 0.52vw, 2rem);
    font-style: normal;
    font-weight: 400;
    line-height: normal;
    letter-spacing: 1.92px;
    margin-bottom: 28px;
}
.course-text h3 span{
    color: #452C04;
    text-align: center;
    -webkit-text-stroke-width: 0.3px;
    -webkit-text-stroke-color: #452C04;
    font-family: "BIZ UDMincho";
    font-size: clamp(2rem, 1.636rem + 1.55vw, 3.5rem);
    font-style: normal;
    font-weight: 400;
    line-height: 40px;
}
.course-img img{
    height: 100%;
    object-fit: cover;
}

.course-btn{
    width: 100%;
    height: 48px;
    border-radius: 40px;
    border: 1px solid #452C04;
    text-decoration: none;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 32px;
}
.course-btn p{
    color: #452C04;
    text-align: center;
    /* H2 */
    -webkit-text-stroke-width: 0.3px;
    -webkit-text-stroke-color: #452C04;
    font-family: "BIZ UDMincho";
    font-size: 18px;
    font-style: normal;
}

/* spot */
.spot-item{
    width: 30%;
    padding-bottom: 100px;
}
.spot-item img{
    margin-bottom: 32px;
}
.spot-item > p{
    margin-bottom: 10px;
}
.spot-access{
    display: flex;
    justify-content: left;
    align-items: center;
    gap: 16px;
    padding: 10px;
    border: 1px solid #452C04;
    border-radius: 6px;
}
.spot-access::before{
    content: '';
    background-image: url(../img/spot-dec.png);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: block;
    width: 26px;
    aspect-ratio: 1/1;
}
.spot-access p{
    font-size: 14px;
}

/* attention */
.attention{
    width: 100%;
    padding: 40px 0;
    background: #F7F3E7;
    text-align: center;
}
.attention h2{
    font-size: 18px;
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;

}
.attention h2::before{
    content: '';
    background-image: url(../img/attention.webp);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: block;
    width: 28px;
    aspect-ratio: 1/1;
}
.attention p{
    width: fit-content;
    text-align: left;
    margin: 0 auto;
}

/* footer */
footer{
    width: 100%;
}
footer ._flex{
    width: 80%;
    max-width: 1080px;
    margin: 0 auto;
    justify-content: left;
    align-items: center;
    gap: 2%;
    padding: 28px 0;
}
footer ._flex .footer-sns{
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
}
footer ._flex > img{
    width: 116px;
}
footer ._flex a img{
    width: 40px;
    aspect-ratio: 1/1;
}
.copyright{
    width: 100%;
    background: #452C04;
    padding: 14px 0;
    font-size: 14px;
    color: #FFFDF6;
    text-align: center;
    font-size: 14px;
}

@media screen and (max-width: 768px) {
    ._inner{
        width: 90%;
    }
    .mv{
        position: relative;
    }
    .mv img{
        width: 80%;
        padding: 0;
        position: absolute;
        bottom: 15%;
        left: 50%;
        transform: translateX(-50%);
    }
    .about ._flex{
        gap: 32px;
    }
    .plan ._inner{
        padding: 32px 4%;
        width: 100%;
    }
    .plan ._flex{
        width: 90%;
        margin: 0 auto 80px;
        flex-direction: column-reverse;
    }
    ._flex{
        flex-direction: column;
        gap: 32px;
    }
    ._flex-text{
        width: 100%;
    }
    ._flex-img{
        width: 100%;
    }
    .about-img{
        width: 100%;
    }
    .about-text{
        width: 100%;
    }
    .about-text{
        width: 100%;
    }
    .course ._flex{
        margin-bottom: 80px;
        width: 100%;
    }
    .course-img{
        width: 100%;
    }
    .course-text{
        width: 100%;
        box-sizing: border-box;
    }
    .course-text img{
        max-width: 50px;
    }
    .course-text h3{
        font-size: 16px;
    }
    ._reverse._flex{
        flex-direction: column;
    }
    .spot ._flex{
        flex-direction: column;
        gap: 32px;
    }
    .spot-item{
        width: 100%;
        padding: 40px 0;
    }
    .spot-item img{
        margin-bottom: 16px;
    }
    .spot-item > p{
        margin-bottom: 10px;
    }
    .spot-access{
        padding: 10px;
    }
    .spot-access::before{
        width: 20px;
    }
    .spot-access p{
        font-size: 12px;
    }

    footer ._flex{
        width: 90%;
        flex-direction: column;
        gap: 16px;
        flex-wrap: wrap;
    }
    footer ._flex > img{
        width: 100px;
    }
    footer ._flex a img{
        width: 32px;
    }
    .copyright{
        font-size: 12px;
    }
}
.sp-only{
    display: none;
}
@media screen and (max-width: 768px) {
    .sp-only{
        display: block;
    }
}

/* トップに戻るボタン */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #452C04;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    cursor: pointer;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: #5a3a0a;
    transform: translateY(-2px);
}

.back-to-top a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    text-decoration: none;
}

.back-to-top span {
    color: #FFFDF6;
    font-size: 24px;
    font-weight: bold;
    line-height: 1;
}

@media screen and (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }
    
    .back-to-top span {
        font-size: 20px;
    }
}


/* 251015 */
.disabled {
    pointer-events: none;
    opacity: 0.6;
}