.b-why {
    position: relative;
    padding: 80px 0 120px;
}
.mobile .b-why {
    position: relative;
    padding: 40px 15px;
}
.b-why .b-section__description {
    width: 760px;
}
.b-why__flex {
    margin: 0 auto 20px;
    max-width: 1000px;
    max-height: 1050px;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    justify-content: flex-start;
}
.mobile .b-why__flex {
    width: 100%;
    max-height: 5000px;
}
.b-why__item {
    position: relative;
    width: calc(50% - 12px);
    margin-right: 24px;
    padding: 32px;
    font: 16px/28px 'Open Sans', sans-serif;
    color: #B3B7BD;
    z-index: 1;
    border-radius: 16px;
    box-shadow: 0 44px 36px 0 #00000014;
    background: radial-gradient(93.75% 41.46% at 81.15% 100%, #29FAE852 0%, #29333F00 100%),
        #29333F radial-gradient(92.48% 41.03% at 19.2% 100%, #297FFA8C 0%, #29333F00 100%);
}
.b-why__item:nth-child(2n+1) {
    margin-bottom: 40px;
}
.mobile .b-why__item:nth-child(2) {
    margin-bottom: 40px;
}
.b-why__item:after {
    position: absolute;
    content: "";
    top: 100%;
    left: 20px;
    width: calc(100% - 40px);
    height: 10px;
    border-radius: 0 0 10px 10px;
    background: linear-gradient(90.04deg, #4580FF 0.89%, #22E2FF 42.86%, #00FCB0 82.38%);
}
.b-why__img {
    width: 48px;
    height: 48px;
    margin: 0 0 16px;
}
.b-why__title {
    margin: 0 0 16px;
    font: 700 24px/40px 'Open Sans', sans-serif;
    color: #FFFFFF;
}

.b-why a {
    color: #38b1fe;
    text-decoration: underline;
}
html[lang='ja'] .b-why__title {
    font: 700 22px/36px 'Open Sans', sans-serif;
}

@media (max-width: 850px) {
    .mobile .b-why__img {
        display: inline-block;
        margin: 0 ;
        width: 40px;
        height: 40px;
        background-size: 40px;
        vertical-align: top;
    }
}
@media (max-width: 690px) {
    .b-why__item {
        width: 100%;
        padding: 14px 24px 24px 24px;
    }
}