body{
    background:#120b06;
    color:#e6d8b8;
    font-family:"Yu Mincho","Hiragino Mincho ProN",serif;
}

.basic-wrapper{
    max-width:900px;
    margin:auto;
    padding:40px 20px 80px;
}

h1{
    text-align:center;
    letter-spacing:0.2em;
    margin-bottom:10px;
}

.intro{
    text-align:center;
    color:#c9b48a;
    margin-bottom:40px;
}

section{
    background:#1f140b;
    border:1px solid #6b4b2a;
    border-radius:10px;
    padding:20px;
    margin-bottom:24px;
}

h2{
    font-size:1.1rem;
    color:#d6b873;
    border-bottom:1px solid #6b4b2a;
    padding-bottom:6px;
    margin-bottom:12px;
}

ol{
    padding-left:20px;
}

.term{
    margin-bottom:6px;
}
/* ===== 切り替え式 ===== */

.accordion{
    background:#1f140b;
    border:1px solid #6b4b2a;
    border-radius:10px;
    margin-bottom:24px;
    overflow:hidden;
}

.accordion-header{
    width:100%;
    background:none;
    border:none;
    color:#d6b873;
    text-align:left;
    font-size:1rem;
    padding:14px 16px;
    cursor:pointer;
    letter-spacing:0.05em;
}

.accordion-header:hover{
    background:rgba(255,255,255,0.05);
}

.accordion-body{
    display:none;
    padding:16px;
    border-top:1px solid #6b4b2a;
}

.accordion.open .accordion-body{
    display:block;
}