header {
    height: 6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: sticky;
    top: 0;
    padding: 0 1.5rem;
    z-index: 7777;
    background: #fff;
}
header h1 {
    width: 8rem;
}
header h1 a {
    width: 100%;
}
header h1 a img {
    width: 100%;
}
.bottom-btn {
    z-index: 9999;
    position: fixed;
    width: 100%;
    bottom: 0;
    left: 0;
    padding: 1rem 1.5rem;
    background: transparent;
}
.bottom-btn a {
    display: block;
    background-color: #333333;
    background-image: url(../img/banner-img.png);
    background-repeat: no-repeat;
    background-size: 7rem;
    background-position: 8% 100%;
    padding: 3rem 2rem;
    border-radius: 1.5rem;
    text-align: right;
}
.bottom-btn a span {
    font-size: 1.6rem;
    color: #fff;
}
.bottom-btn a p {
    font-size: 2.1rem;
    color: #fff;
    font-weight: 600;
    margin-top: 1rem;
}


main#home {
    padding: 0 1.5rem 3rem;
}
main {
    padding: 0 1.5rem 13rem;
}

footer {
    background-color: #f9f9fb;
    width: 100%;
    padding: 4rem 0 15rem 0;
}
footer p {
    font-size: 1.5rem;
    font-weight: 600;
    color: #6e6e6e;
    text-align: center;
    margin-bottom: 1rem;
}
footer pre {
    font-size: 1.4rem;
    font-weight: 500;
    color: #939393;
    text-align: center;
    margin: 0;
}
footer pre span {
    font-size: 1.5rem;
    font-weight: 600;
    color: #6e6e6e;
}



/* common */
h3 {
    font-size: 2rem;
    font-weight: 700;
    margin: 2rem 0;
}
h4 {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    font-weight: 800;
    color: #3f79ed;
    border-radius: 1rem;
    background-color: #e9faff;
    padding: 2rem 0;
    margin: 2rem 0 4rem 0;
}
h4 img {
    width: 2rem;
    margin-right: 0.5rem;
}
h5 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.4;
}
pre {
    font-size: 1.6rem;
    font-weight: 500;
    color: #626161;
    line-height: 1.4;
    margin-bottom: 3rem;
}
pre span.point3 {
    font-size: 1.6rem;
    font-weight: 800;
    color: #3d78ed;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}


.four-btn-wrapper {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 1.5rem;
}
a.four-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: calc(100% / 2 - 0.7rem);
    padding: 1.5rem;
    border-radius: 1rem;
    background-color: #4880ee;
    margin-bottom: 1.5rem;
}
a.four-btn span {
    font-size: 1.8rem;
    font-weight: 500;
    color: #fff;
    line-height: 1.4;
    margin-bottom: 1rem;
    text-align: center;
}
a.one-btn {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1.5rem;
    border-radius: 1rem;
    background-color: #4880ee;
    margin-bottom: 1.5rem;
}
/* .section.home a.one-btn:nth-of-type(2) {
    margin-bottom: 1.5rem;
} */
a.one-btn span {
    font-size: 1.8rem;
    font-weight: 500;
    color: #fff;
    line-height: 1.4;
    text-align: center;
    margin-right: 0.5rem;
}
a.one-btn img,
a.four-btn img {
    width: 2rem;
}



/* .section.D a:nth-of-type(1) {
    margin-bottom: 1.5rem;
} */










/* index.php */
.section.home {
    display: flex;
    flex-direction: column;
}
.section.home .wrapper {
    padding: 2rem 1.5rem;
    border-radius: 1rem;
    background-color: #e9faff;
    margin-bottom: 3rem;
}
.section.home .wrapper h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
}
.section.home .wrapper h2 span {
    font-size: 2rem;
    font-weight: 800;
    color: #3f79ed;
}
.section.home .wrapper h2 img {
    width: 2rem;
    margin-right: 0.5rem;
}
.section.home .wrapper pre {
    margin: 0;
}