@charset "UTF-8";

.serif{
    font-family: "ヒラギノ明朝 ProN", serif;
}
.column02:has(+ .seminar-list){
    padding-bottom: 50px;
}
.seminar-list {
    position: relative;
    padding-top: 80px;
    background: none;
}
.seminar-list::before {
    content: "";
    display: block;
    max-height: 458px;
    height: 30%;
    position: absolute;
    width: 100%;
    background-image: linear-gradient(60deg, #012555 50%, #002a74 85%);
    top: 0;
    left: 0;
}
.seminar-list__intro{
    color: white;
    position: relative;
}
.seminar-list__intro h2{
    line-height: 1;
}
.seminar-list__intro .sub_catch{
    font-size: 1.6rem;
    line-height: calc(26 / 16);
    margin-top: 45px;
}
.seminar-list__items{
    display: flex;
    flex-wrap: wrap;
    max-width: 926px;
    width: 90%;
    margin: 0 auto;
    margin-top: 60px;
    gap: 5%;
    row-gap: 3rem;
    position: relative;
}
.seminar-list__items li{
    width: 47.5%;
    max-width: 438px;
}
.seminar-list__items li figure{
    padding: 0;
    margin: 0;
    border-radius: 10px;
    overflow: hidden;
    aspect-ratio: 438 / 264;
    box-shadow: 0 6px 10px rgba(0,0,0,.16);
}
.seminar-list__items li figure img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}
.seminar-list__content{
    margin: 1.5rem auto 2rem;
    width: calc(421 / 438 * 100%);
}
.seminar-list__title{
    font-size: 1.8rem;
    min-height: 58px;
}
.seminar-list__message{
    margin-top: 2rem;
}
.seminar-list__dates{
    margin-top: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 4%;
    row-gap: 1.5rem;
}
a.seminar-list-btn{
    text-align: center;
    display: block;
    border-radius: 5px;
    background-image: linear-gradient(45deg, #397ad0 50%, #195ed8 78%);
    box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.16);
    color: white;
    font-size: 1.5rem;
    line-height: 1.2;
    padding: 1rem;
    position: relative;
    transition: .3s ease;
}
a.seminar-list-btn--twin{
    width: 48%;
}
a.seminar-list-btn--single{
    width: 100%;
}
a.seminar-list-btn:hover{
    opacity: .8;
}
a.seminar-list-btn span{
    font-size: 1.2rem;
}
a.seminar-list-btn--single span{
    font-size: .8rem;
}
.seminar-list__button{
    margin-top: 1.5rem;
}
.seminar-list__text{
    height: 0;
    overflow: hidden;
    position: relative;
}
.seminar-list__text p,
.seminar-list__text ul li,
.seminar-list__text dl dt,
.seminar-list__text dl dd{
    font-size: 1.4rem;
}
.seminar-list__text p,
.seminar-list__text ul,
.seminar-list__text dl{
    margin-top: 2rem;
}
.seminar-list__text ul li{
    font-weight: bold;
}
.seminar-list__text dl dt{
    margin-top: 1.5rem;
    font-weight: bold;
}
.seminar-list__text dl dt::before{
    content: "■";
    display: inline-block;
}
.seminar-list__text ul{
    list-style-type: disc;
    padding-left: 3rem;
}
.seminar-list__text::after{
    content: "";
    display: block;
    width: 100%;
    height: 8em;
    left: 0;
    bottom: 0;
    background: linear-gradient(to top, white 0%, transparent 100%);
    /* background: linear-gradient(to top, lch(91% 5% 259deg) 0%, transparent 100%); */
    position: absolute;
}
.seminar-list__toggle{
    margin-top: 1.5rem;
    appearance: none;
    border: none;
    width: 100%;
    padding: 1rem;
    text-align: center;
    color: white;
    font-weight: bold;
    font-size: 1.6rem;
    background-image: linear-gradient(60deg, #3d91be 50%, #38a0c7 90%);
    position: relative;
    box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.16);
    border-radius: 5px;
    transition: .3s ease;
    cursor: pointer;
}
.seminar-list__toggle:hover{
    opacity: .8;
}
.seminar-list__toggle i{
    position: absolute;
    width: 19px;
    height: 19px;
    display: block;
    border: 1px solid white;
    border-radius: 9999px;
    top: 50%;
    right: 1.5rem;
    transform: translateY(-50%);
}
.seminar-list__toggle i::after{
    content: "";
    position: absolute;
    width: 6px;
    height: 6px;
    display: block;
    border-right: 1px solid white;
    border-top: 1px solid white;
    transform: rotate(45deg);
    top: 50%;
    margin-top: -3.5px;
    left: 50%;
    margin-left: -4px;
}

/* lightbox */
.seminar-list__detail{
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(255,255,255,.8);
    width: 100%;
    height: 100%;
    padding: 3%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 11;
}
.seminar-list__detail .no-detail{
    display: none;
}
.seminar-list__detail-container{
    width: 90%;
    max-width: 926px;
    height: 100%;
    margin: 0;
    background: white;
    border: 1px solid #707070;
    padding: 4.5rem;
}
.seminar-list__detail-inner{
    overflow: auto;
    height: 100%;
}
.seminar-list__detail-inner h3{
    font-size: 2.5rem;
    border-bottom: 1px solid #195ED8;
    padding-bottom: 2rem;
}

.seminar-list__detail-content{
    margin-top: 2rem;
}
.seminar-list__detail-content p,
.seminar-list__detail-content ul li,
.seminar-list__detail-content dl dt,
.seminar-list__detail-content dl dd{
    font-size: 1.5rem;
    line-height: 1.8;
}
.seminar-list__detail-content p,
.seminar-list__detail-content ul,
.seminar-list__detail-content dl{
    margin-top: 2rem;
}
.seminar-list__detail-content ul li{
    font-weight: bold;
}
.seminar-list__detail-content dl dt{
    margin-top: 1.5rem;
    font-weight: bold;
}
.seminar-list__detail-content dl dt::before{
    content: "■";
    display: inline-block;
}
.seminar-list__detail-content ul{
    list-style-type: disc;
    padding-left: 4rem;
}
.seminar-list__detail-message{
    margin-top: 5rem;
}
.seminar-list__detail-message strong{
    font-weight: bold;
    display: block;
}
.seminar-list__detail-close{
    font-size: 2.3rem;
    font-weight: bold;
    text-align: center;
    margin-top: 10rem;
    margin-bottom: 5rem;
    cursor: pointer;
}
.seminar-list__detail-close i{
    background-image: url(../img/ico_close.svg);
    background-size: contain;
    width: 1.6rem;
    height: 1.6rem;
    display: inline-block;
    margin-left: 1rem;
}

.seminar-list__items li.seminar-list__single{
    max-width: 100%;
    width: 100%;
}
.seminar-list__items .seminar-list__single-inner{
    width: 52%;
    margin-left: auto;
    margin-right: auto;
}
.seminar-list__items .seminar-list__single-inner .seminar-list__title{
    min-height: 0;
}

@media screen and (max-width:768px) {
    .seminar-list {
        padding-top: 70px;
    }
    .seminar-list::before {
        max-height: 358px;
    }
    .seminar-list__intro h2.h2_mds{
        font-size: 3.4rem;
    }
    .seminar-list__intro .sub_catch{
        font-size: 1.4rem;
        line-height: 2;
        margin-top: 25px;
    }
    .seminar-list__intro .sub_catch span{
        display: inline-block;
        text-align: left;
        padding-left: 1em;
        text-indent: -1em;
    }
    .seminar-list__items{
        margin-top: 4rem;
        flex-direction: column;
        width: 100%;
        row-gap: 2rem;
    }
    .seminar-list__items li{
        width: 100%;
    }
    a.seminar-list-btn{
        font-size: 1.2rem;
    }
    a.seminar-list-btn span{
        font-size: 1.1rem;
    }
    .seminar-list__dates-date{
        margin-bottom: 5px;
    }
    a.seminar-list-btn.seminar-list-btn--single{
        font-size: 1.3rem;
    }
    a.seminar-list-btn.seminar-list-btn--single span{
        font-size: 1.1rem;
    }
    a.seminar-list-btn.seminar-list-btn--single div{
        margin-bottom: 5px;
    }

    /* スマホサイズでのスライドダウン */
    .seminar-list__text{
        max-height: 0;
        height: auto;
        overflow: hidden;
        transition: max-height 0.4s ease-in-out;
    }
    .seminar-list__text.is-expanded{
        margin-bottom: 1rem;
    }
    .seminar-list__text.is-expanded::after{
        display: none;
    }
    
    .seminar-list__toggle{
        margin-top: 1rem;
    }
    .seminar-list__toggle i::after{
        transform: rotate(135deg);
        margin-left: -3px;
        margin-top: -4px;
    }
    .seminar-list__toggle.is-active i::after{
        transform: rotate(-45deg);
        margin-top: -1px;
    }
    .seminar-list .form dl dt{
        display: flex;
    }
    .seminar-list .form dl dt.required:after{
        line-height: 1;
        padding: 6px;
        right: 0;
    }
    .seminar-list .seminar_form-select{
        position: relative;
    }
    .seminar-list .seminar_form-select::after{
        content: "▼";
        position: absolute;
        display: block;
        right: 1rem;
        top: 50%;
        transform: translateY(-50%);
    }
    .seminar-list .form dl dd select{
        appearance: none;
        background-color: white;
        color: rgb(15, 19, 42);
        padding-right: 3rem;
    }

    .seminar-list__items .seminar-list__single-inner{
        width: 100%;
    }
}