html,
body {
    height: 100%;
    /*    font-size: 36px; */
    font-size: 28px;
    font-weight: bolder;
    box-sizing: border-box;
    /*    background: #000;
    color: #F00; */
}

nav {
    display: flex;
    justify-content: space-between;
}

/* スタッフメニューのスタイル */
.staff-nav {
    background-color: #333;
    border-radius: 8px;
    padding: 10px;
    margin: 20px 0;
}

.staff-nav ul {
    display: flex;
    list-style: none;
    flex-wrap: wrap;
}

.staff-nav li {
    margin: 5px 10px;
}

.staff-nav a {
    color: white;
    text-decoration: none;
    font-size: 32px;
    padding: 10px 20px;
    border-radius: 5px;
    display: block;
    transition: background-color 0.3s;
}

.staff-nav a:hover {
    background-color: #555;
}

.staff-nav li.active a {
    background-color: #4CAF50;
    font-weight: bold;
}

/* スタッフコンテンツエリアのスタイル */
.staff-content {
    padding: 20px;
}

.staff-header {
    margin-bottom: 20px;
}

.staff-dashboard {
    margin-top: 30px;
}

.dashboard-item {
    background-color: #f5f5f5;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    border-left: 5px solid #4CAF50;
}

body {
    display: flex;
    flex-direction: column;
    /* min-height: 100%; */
    font-family: "ＭＳ ゴシック", sans-serif;
    padding: 10px;
}

body * {
    line-height: 1.5em;
}

header>ul {
    display: flex;
    list-style-type: none;
}

header>ul>li {
    margin: 2px 8px;
}

footer {
    font-size: 16px;
    margin-top: auto;
    text-align: center;
}

h1 {
    margin: 20px;
    font-size: xx-large;
}

h2 {
    margin: 16px;
    font-size: x-large;
}

h3 {
    margin: 12px;
    font-size: 36px;
}

hr {
    border: none;
    height: 6px;
    background-color: #000000;
}

ul {
    line-height: 1.2em;
}

.introduction {
    margin: 40px 0px;
}

.result_question {
    background: #DDD;
}

.result_answer {
    margin-left: 30px;
}

.div_form>div {
    font-size: 24px;
    line-height: 2.2em;
    /*    margin-left: 2em; */
}

.div_form>div {
    border-top: solid 1px #666;
}

.div_form>div:nth-of-type(even) {
    background: #fff4ea;
}

.dl_form {
    line-height: 2.4em;
}

.dl_form dt,
.dl_form dd {
    border-top: solid 1px #666;
}

.dl_form dt:nth-of-type(even),
.dl_form dd:nth-of-type(even) {
    background: #fff4ea;
}

.dl_form dd {
    padding: 0px 0px 0px 20px;
}

.customer_form label {
    display: inline-block;
    border: solid 1px #666;
    border-radius: .2em;
    padding: 2px 10px;
    margin: 5px;
    background: #FFF;
}

.customer_form label:has(input:checked) {
    background: #ffaaaa;
}

@media(min-width: 800px) {
    .dl_form {
        display: flex;
        flex-wrap: wrap;
    }

    .dl_form dt {
        width: 55%;
    }

    .dl_form dd {
        width: 42%;
    }
}


#div_4read {
    font-size: 14px;
}

#div_4read h4 {
    font-size: 18px;
}

input {
    font-size: 32px;
    padding: 3px;
}

input:invalid {
    border: solid 2px #F00;
    background: #ffeaea;
}

input[type=checkbox] {
    width: 24px;
    height: 24px;
}

input[type="radio"] {
    width: 24px;
    height: 24px;
    margin: 8px;
}

select {
    font-size: 24px;
    height: 48px;
    padding: 5px;
}

button {
    font-size: 24px;
    height: 48px;
}

section#choose>div {
    font-size: 28px;
}

section#choose button.on {
    background: #ffaaaa;
    color: #000;
}