header {
    height: 5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: sticky;
    top: 0;
    padding: 0 1.5rem;
    margin-bottom: 1rem;
    z-index: 7777;
    background: #fff;
    border-bottom: 0.1rem solid #f6f6f6;
}
header h1 {
    width: 18rem;
}
header h1 a {
    width: 100%;
}
header h1 a img {
    width: 100%;
}


main {
    padding: 0 1.5rem 8rem;
}

footer {
    background-color: #f9f9fb;
    width: 100%;
    padding: 4rem 0;
}
footer p {
    font-size: 1.4rem;
    font-weight: 500;
    color: #7c7c7c;
    text-align: center;
    margin-bottom: 1rem;
}
footer pre {
    font-size: 1.3rem;
    font-weight: 400;
    color: #939393;
    text-align: center;
    line-height: 1.3;
}


/* common */
.section h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #499bda;
    margin-bottom: 2rem;
}
.section h4 {
    font-size: 1.6rem;
    font-weight: 600;
    color: #3fb6e5;
    margin-bottom: 0.5rem;
}
.section pre {
    font-size: 1.6rem;
    font-weight: 400;
    color: #5f5f5f;
    margin-bottom: 2rem;
    line-height: 1.4;
}
.section pre span.point1 {
    font-size: 1.6rem;
    font-weight: 600;
    color: #626262;
    line-height: 1.4;
}
.section pre:last-of-type {
    margin-bottom: 5rem;
}
a.aButton {
    padding: 2.5rem 1.5rem;
    border-radius: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
a.aButton.sub {
    background-color: #005d96;
    margin-bottom: 1.5rem;
}
a.aButton span {
    font-size: 2rem;
    font-weight: 500;
    color: #fff;
}
a.aButton img {
    height: 1.8rem;
    margin-left: 1rem;
}






/* home */
.section.top {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 4rem;
    padding-top: 4rem;
}
.section.top img {
    width: 10rem;
    margin-bottom: 1.5rem;
}
.section.top pre {
    font-size: 1.8rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 3rem;
    line-height: 1.3;
}
.section.top pre b {
    font-size: 2rem;
    font-weight: 700;
    color: #499bda;
    line-height: 1.3;
}
.section.top p {
    font-size: 1.6rem;
    font-weight: 500;
    color: #878787;
    text-align: center;
    line-height: 1.3;
}

.section.bottom .wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}
.section.bottom a.aButton.home:nth-child(1) {
    background-color: #82d8d5;
    width: calc(100% / 2 - 1rem);
}
.section.bottom a.aButton.home:nth-child(2) {
    background-color: #11dadd;
    width: calc(100% / 2 - 1rem);
}
.section.bottom a.aButton.home:nth-child(3) {
    background-color: #00c6c6;
    width: 100%;
    margin-top: 2rem;
    margin-bottom: 5rem;
}
.section.bottom a.aButton.home:nth-child(4) {
    background-color: #6fc4f7;
    width: 100%;
    margin-bottom: 5rem;
}
.section.bottom a.aButton.home {
    background-color: #469ad9;
    width: 100%;
}
.section.bottom h3 {
    font-size: 2rem;
    font-weight: 700;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom: 1.5rem;
}
.section.bottom h3 img {
    width: 2rem;
    margin-right: 0.5rem;
}



/* sub1 */
.section.sub1 h4:nth-of-type(3),
.section.sub1 h4:nth-of-type(4) {
    margin-bottom: 2.5rem;
}


/* sub3 */
.section.sub3 {
    margin-bottom: 5rem;
}


/* sub4 */
.section.sub4 .chart {
    width: 100%;
    overflow-x: scroll;
    margin-bottom: 10rem;
}
.section.sub4 .chart img {
    height: 30rem;
}
.section.sub4 a.aButton.sub {
    margin-bottom: 3rem;
}



/* qna */
.section.qna .qna-wrapper {
    margin-bottom: 2rem;
}
.section.qna .qna-wrapper h3 {
    font-size: 1.8rem;
    font-weight: 500;
    color: #fff;
    line-height: 1.4;
    padding: 1.5rem;
    border-radius: 1rem;
    background-color: #00c6c6;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.section.qna .qna-wrapper h3 img {
    width: 3rem;
    margin-left: 1rem;
}
.section.qna .qna-wrapper pre {
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 1.4;
    border-radius: 1rem;
    padding: 2.5rem 1.5rem;
    margin: 0;
}