/* -------------------- */
/* 右下固定ボタン */
#page_top {
    width: 100px;
    height: 100px;
    position: fixed;
    right: 20px;       /* 右端から少し離す */
    bottom: 120px;     /* 下から5cmくらい */
    border-radius: 50%;
    background: #ffb6c1;  
    opacity: 0.6;
    z-index: 9999;
    transition: opacity 0.3s;
}

#page_top:hover {
    opacity: 1;
}

/* 矢印アイコンは不要 */
#page_top::before {
    content: none;
}

#page_top a {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
    text-decoration: none;
}

#page_top a::after {
    content: '実施済みのイベントはこちら！';
    font-size: 13px;
    color: #000;
    position: absolute;
    top: 35px;
    left: 0;
    right: 0;
    text-align: center;
}

/* -------------------- */
/* 既存のアコーディオンやボタンCSSはそのまま残す */
.content .c-link2 { margin-top: 2rem; }

.content .c-btn a {
    line-height: 1.1;
    font-weight: normal;
    height: 3rem;
    background: #ef700096;
    font-size: 0.8rem;
}

.content .c-btn-body { height: 3rem; }

.acd-check { display: none; }

.acd-label {
    background: #ef7c00;
    color: #fff;
    font-size:1.5rem;
    display: block;
    margin-bottom: 1px;
    padding: 8px 13px 6px ;
    position: relative;
}

.acd-label::before {
    content:"";
    width: 12px;
    height: 12px;
    border-top: 4px solid #fff;
    border-right: 4px solid #fff;
    border-color:#fff;
    -webkit-transform: rotate(45deg);
    position: absolute;
    top:calc( 40% - 3px );
    right: 20px;
    transform: rotate(135deg);
}

.acd-content{
    display: block;
    height: 0;
    opacity: 0;
    padding: 0 10px;
    transition: .5s;
    visibility: hidden;
}

.acd-check:checked + .acd-label::before {
    transform: rotate(-45deg) !important;
}

.acd-check:checked + .acd-label + .acd-content{
    height: 100%;
    opacity: 1;
    padding: 5px 15px;
    visibility: visible;
}

a.btn_13 {
    justify-content: space-between;
    align-items: center;
    text-align: center;
    text-decoration: none;
    margin: auto;
    padding: 0.3rem 0.3rem 0.3rem 0.1rem;
    font-weight: bold;
    color: #336699;
    position: relative;
    transition: 0.5s;
}

a.btn_13:hover { background: #d4eef7; }

.content .c-btn a {
    background:#ef7c00;
    font-weight: 700;
    letter-spacing: 0.1rem;
    font-family: "Meiryo";
}

.content .c-btn a:hover { opacity: 1; }

.c-section-head img{ padding: 0px 0 0.1rem 0.2rem; }

.content .c-link-list { max-width: 960px; }

.content .c-link-list__item {
    width: calc((960 - 20) / 3 / 960 * 100%);
}

.tearai { width:240px; }

@media (max-width: 769px){
    .content .c-link-list__item { width: 100%; }
    .tearai{ width:100%; }
}
</style>