body {
    line-height: 1.7;
    font-size: 18px;
    color: #333;
    font-family: "Noto Sans JP", sans-serif;
}

@media screen and (min-width: 768px) {
    body {
        font-size: 18px;
    }
}

.main {
    width: min(90%, 860px);
    margin-inline: auto;
    padding: 80px 0;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

/* ======================= */
/* サンプル1 */
/* ======================= */
.header01 {
    padding: 16px 24px;
    background-color: #fafafa;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header01-logo {
    font-weight: bold;
    font-size: 20px;
}

.header01-list {
    display: flex;
    align-items: center;
    gap: 32px;
    font-weight: bold;
}

.header01-item--contact a {
    display: block;
    background-color: #2486d1;
    color: #fff;
    padding: 8px 20px;
    border-radius: 6px;
}

/* ======================= */
/* サンプル2 */
/* ======================= */
.header02 {
    padding: 16px 24px;
    background-color: #333;
    color: #fff;
}

.header02-logo {
    text-align: center;
    font-weight: bold;
    font-size: 20px;
}

.header02-list {
    display: flex;
    justify-content: center;
    gap: 32px;
    font-weight: bold;
    margin-top: 24px;
}

/* ======================= */
/* sample03 */
/* ======================= */
.header03 {
    padding: 16px 24px;
    background-color: #fafafa;
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
}

.header03-logo {
    font-weight: bold;
    font-size: 20px;
}

.header03-list {
    display: flex;
    align-items: center;
    margin-left: 40px;
    gap: 32px;
    font-weight: bold;
}

.header03-item--contact {
    margin-left: auto;
}

.header03-item--contact a {
    display: block;
    background-color: #2486d1;
    color: #fff;
    padding: 8px 20px;
    border-radius: 6px;
}

/* ======================= */
/* サンプル4 */
/* ======================= */
.header04 {
    padding: 16px 24px;
    background-color: #fafafa;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
}

.header04-logo {
    font-weight: bold;
    font-size: 20px;
}

.header04-list {
    display: flex;
    align-items: center;
    gap: 32px;
    font-weight: bold;
}

.header04-contact {
    display: block;
    background-color: #2486d1;
    font-weight: bold;
    color: #fff;
    padding: 8px 20px;
    border-radius: 6px;
    margin-left: auto;
}