body {
    margin: 0;
}

p {
    margin: 0;
    line-height: 1.6;
}

header {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    justify-content: space-between;
    align-items: center;
}

.openbtn {
    position: relative;
    /*ボタン内側の基点となるためrelativeを指定*/
    background: #57a2c7;
    cursor: pointer;
    width: 50px;
    height: 25px;
    border-radius: 5px;
    padding: 20px 10px;
}


.openbtn span {
    display: block;
    height: 0.1em;
    background: white;
    border-radius: 0.1em;
}

.openbtn>span+span {
    margin-top: 10px;
}

.menu {
    border: 3px solid #000;
    padding: 20px;
}

.menu-area {
    display: flex;
    align-items: center;
}

.menu li {
    list-style: none;
}

.menu li a {
    border-bottom: 1px solid #6e6e6e;
    padding: 10px;
    display: inline-block;
    width: 100%;
    text-decoration: none;
}

main {
    display: flex;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    margin-top: 5%;
}

.content {
    width: 70%;
    display: flex;
    flex-direction: column;
    gap: 50px;
}

aside {
    width: 30%;
}


h2 {
    display: inline-block;
    border-bottom: 5px solid #3abffd;
    width: 100%;
    padding-bottom: 10px;
}

.content-setumei {
    font-weight: bold;
    margin-bottom: 30px;
}

.quiz-toi {
    border-bottom: 1px solid #ccc;
    padding-bottom: 10px;
    margin-bottom: 10px;
}

.quiz-toi:last-child {
    margin-bottom: 0;
}

.koukoku {
    border: 1px solid #ccc;
    display: inline-block;
    position: fixed;
    right: 0;
    bottom: 120px;
    width: 100px;
    height: 180px;
    background-color: white;
}

.koukoku-cancel {
    width: 30px;
    height: 30px;
    background-color: #e4e4e4;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.koukoku-content {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: calc(100% - 30px);
    padding: 0 10px;
    cursor: pointer;
}

.koukoku-content span {
    font-size: 10px;
    margin-top: 8px;
    background-color: #ebebeb;
    padding: 5px;
}

footer {
    background-color: rgb(27, 27, 27);
    color: white;
    font-size: 12px;
    padding: 5px;
    text-align: center;
    margin: 100px 0 0;
}

section:first-child .content-setumei {
    font-weight: bold;
    margin-bottom: 15px;
}

.accordion-item {
    margin-bottom: 8px;
}

.title {
    cursor: pointer;
    background-color: #f1f1f1;
    padding: 8px;
    border: 1px solid #ddd;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dli-plus {
    display: inline-block;
    vertical-align: middle;
    color: #333;
    line-height: 1;
    width: 1em;
    height: 0.1em;
    background: currentColor;
    border-radius: 0.1em;
    position: relative;
}

.dli-plus::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: inherit;
    border-radius: inherit;
    transform: rotate(90deg);
}