* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
* {    
    font-family: 'Noto Sans JP';
    font-weight: 400;
}
section {
    padding: 50px 0;
}
.banner {
    height: 86vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.banner-content h1 {
    font-size: 40px;
    font-weight: 700;
}
.banner-content p {
    font-size: 20px;
    font-weight: 700;
}
.banner-image {
    max-width: 600px;
}
.custom-btn {
    padding: 15px 80px;
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    border-radius: 100px;
}
.custom-btn:hover{
    color: #fff;
    background-color: #bb2d3b;
    border-color: #b02a37;
}
.btn-pink {
    background-color: #D8315B;
}
.section-title {
    color: #3E92CC;
}
.section-title h1 {
    font-size: 36px;
}
.section-title p {
    font-size: 14px;
}
.feature-content {
    font-size: 18px;
    margin: 50px 0;
}
.container-ratio {
    width: 100%;
    padding-top: 67%;
    position: relative;
}
.ratio {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
}
img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.feature-item {
    background-color: #FAFAFA;
    padding: 30px;
    margin-bottom: 30px;
}
.case-item:nth-child(odd) .case-item-content,
.feature-item:nth-child(odd) .feature-item-content {
    padding-left: 30px;
}
.case-item:nth-child(even) .case-item-content,
.feature-item:nth-child(even) .feature-item-content {
    padding-right: 30px;
}
.case-item-name,
.feature-item-name {
    color: #3E92CC;
    font-size: 14px;
    font-family: 'Montserrat', sans-serif;
    text-transform: uppercase;
}
h3.case-item-title,
h3.feature-item-title {
    font-size: 24px;
    margin-top: 10px;
    margin-bottom: 20px;
}
.case-item-desc,
.feature-item-desc {
    font-size: 16px;
    line-height: 32px;
}
section.cases,
section.reason {
    background-color: #FAFAFA;
}
section.flow,
section.company {
    padding: 80px 0;
}
.reason-item {
    background-color: #EEEEEE;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.08);
}
.reason-item .container-ratio {
    padding-top: 56%;
}
.reason-content {
    padding: 26px 20px;
    font-size: 15px;
    line-height: 21px;
    background-color: #fff;
}
.company .company-img {
    margin-bottom: calc(var(--bs-gutter-x) * .5 * 2);
}
.company-img .container-ratio {
    padding-top: 25%;
}
.case-item {
    background-color: #fff;
    padding: 30px;
    margin-bottom: 30px;
}
.flow-img {
    max-width: 1000px;
    margin: auto;
}
.flow-img .container-ratio {
    padding-top: 88%;
}
.flow-img img {
    object-position: top;
    object-fit: contain;
}
@media screen and (max-width: 768px) {
    .banner {
        height: 100vh;
    }
    .reason-item {
        margin-bottom: 30px;
    }
    .case-item-content,
    .feature-item-content {
        margin-top: 30px;
    }
    .case-item:nth-child(odd) .case-item-content,
    .feature-item:nth-child(odd) .feature-item-content {
        padding-left: 0;
    }
    .case-item:nth-child(even) .case-item-content,
    .feature-item:nth-child(even) .feature-item-content {
        padding-right: 0;
    }
}