.accordion {
    margin-inline: auto;

/*    max-width: 500px;*/
    margin-bottom: 0.7rem;
/*    border-bottom: 2px solid #000000;*/
}

@media screen and (min-width: 768px) {
    .accordion {
        width: 70%;
    }
}
.accordion summary {
    border-bottom: 1px solid #000000;
}

.accordion summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    padding-top: 1em;
    padding-right: 0.4em;
    padding-left: 0.2em;
/*    padding-inline: 2em;
    color: #0a1a2f;
    font-weight: 600;*/
    cursor: pointer;

    color: #0A1A2F;
    font-family: "Noto Sans JP";
    font-size: 1.4rem;
    font-style: normal;
    font-weight: 500;
    line-height: 157%;

    margin-inline: 1.1rem;
}

.accordion summary::-webkit-details-marker {
    display: none;
}

.accordion summary::before,
.accordion summary::after {
    width: 3px;
    height: .9em;
    border-radius: 5px;
    background-color: #0a1a2fb3;
    content: '';
}

.accordion summary::before {
    position: absolute;
    right: 0.4em;
    rotate: 90deg;
}

.accordion summary::after {
    transition: rotate .3s;
}

.accordion[open] summary::after {
    rotate: 90deg;
}

/* 閉じた状態：高さを0にしてはみ出た部分を隠す */
.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-in-out;
}

/* 開いた状態：コンテンツが伸びて表示される */
.accordion[open] .accordion-content {
    max-height: 1000px; 
}

.accordion p {
    transform: translateY(-10px);
    opacity: 0;
    margin: 0;
    padding-top: 1em;
    padding-inline: 2em;


    color: #0a1a2f;
    transition: transform .5s, opacity .5s;

    color: #0A1A2F;
    font-family: "Noto Sans JP";
    font-size: 1.4rem;
    font-style: normal;
    font-weight: 500;
    line-height: 157%;

    margin-bottom: 1.2rem;
}

.accordion[open] p {
    transform: none;
    opacity: 1;
}

.accordion img:not(:last-of-type) {
    margin-bottom: 2.8rem;
}