.mv{
    position: relative;
    background: url(../images/graduate/mv.jpg) center center no-repeat;
    background-size: cover;
    height: 220px;
    margin: 80px 0 80px 0;
    padding: 0;
}

.mv img{
    display: block;
    width: 100%;
    height: auto;
}

.mv_title{
    text-align: center;
}

.mv_title p{
    border-right: 1px solid #005dae;
    border-left: 1px solid #005dae;
    color: #333333;
    padding: 44px 29px 0;
    display: inline-block;
    margin: 0 0 26px 0;
    font-size: 1rem;
    font-weight: bold;
    letter-spacing: 0.2em;
}

.mv_title h1{
    font-size: 1.75rem;
    letter-spacing: 0.2em;
    color: #333333;
    margin: 0 40px;
}
section{
    margin: 0 100px 40px;
}
section:last-child{
    margin: 0 100px 120px;
}
.section_title{
    position: relative;
    display: block;
    margin: 0 auto;
    text-align: center;
    padding: 15px 0;
    margin: 0 auto 20px;
    letter-spacing: 0.2em;
    width: 250px;
    background: #61a4df;
    font-size: 1.125rem;
    font-weight: bold;
    color: #ffffff;
}
.chapter_label{
    position: relative;
    padding: 20px 40px;
    display: flex;
    align-items: center;
    border: 1px solid #61a4df;
    color: #333333;
    letter-spacing: 0.05em;
    font-weight: bold;
    font-size: 1rem;
    margin: 0 0 20px 0;
}
.chapter_label::before{
    position: absolute;
    content: "";
    background: #61a4df;
    height: 3px;
    width: 24px;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    -webkit-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
}
.chapter_label::after{
    position: absolute;
    content: "";
    background: #61a4df;
    height: 24px;
    width: 3px;
    right: 40px;
    top: 50%;
    transform: translateY(-50%);
    -webkit-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
}

.chapter_label span{
    font-size: 1.5rem;
    margin: 0 23px 0 0;
    color: #61a4df;
}
.chapter_button{
    display: none;
}
.chapter_content{
    height: 0;
    opacity: 0;
    display: none;
}
.chapter_button:checked + .chapter_label + .chapter_content{
    height: 100%;
    opacity: 1;
    display: flex;
    margin: 0 0 20px 0;
}
.chapter_button:checked +.chapter_label{
    margin: 0;
    border-bottom: none;
}
.chapter_button:checked +.chapter_label::after{
    display: none;
}
.chapter_content{
    background: #f7f7f7;
    padding: 15px 0 20px 40px;
    border:1px solid #61a4df;
}
.chapter_content .A{
    font-size: 1.5rem;
    font-weight: bold;
    color: #005dae;
    margin: 0 26px 0 0;
}
.chapter_content p{
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    line-height: 26px;
    color: #333333;
    margin: 0 68px 0 0;
}

.chapter_content p a{
    color: #005dae;
    text-decoration: underline;
}

.chapter_content p span{
    display: block;
    font-weight: bold;
    color: #333333;
}

.sp_br{
    display: none;
}
.sp{
    display: none;
}
@media screen and (max-width:949px) {
    .sp{
        display: block;
    }
    .pc{
        display: none;
    }
    .sp_br{
        display: block;
    }
    .mv{
        padding: 60px 0 0 0;
        height: 120px;
        margin: 0 0 40px 0;
        background: url(../images/graduate/mv_sp.jpg) center no-repeat;
        background-size: 100%;
        background-position: 0 60px;
    }

    .mv_title p{
        padding: 30px 19px 0;
        font-size: 0.6875rem;
        margin: 0 0 15px 0;
    }

    .mv_title h1{
        font-size: 1.125rem;
    }

    section{
        margin: 0 0 20px;
    }
    section:last-child{
        margin: 0 0 120px;
    }
    .chapter_label{
        padding: 13px 42px 13px 15px;
    }
    .chapter_label::before{
        right: 10px;
        width: 20px;
    }
    .chapter_label::after{
        right: 18px;
        height: 20px;

    }
    .chapter_content{
        padding: 12px 0 20px 20px;
    }
    .chapter_content p{
        margin: 0 15px 0 0;
    }
    .chapter_content .A{
        margin: 0 25px 0 0;
    }
    .section_title{
        font-size: 0.9375rem;
        width: 161px;
    }

}