.choose-parity.why-source{padding:72px max(24px,calc((100vw - 1500px)/2)) 92px;background:#fff;color:#18223c;overflow:hidden}
.why-source-title{text-align:center;font-size:38px;margin:0 0 72px;color:#17213c}
.why-source-stage{position:relative;height:414px;max-width:1630px;margin:auto}
.why-source-card{position:absolute;top:44px;width:24%;height:414px;padding:42px 32px;border-radius:15px;background:#f7f7f7;opacity:.95;transition:left .45s ease,width .45s ease,top .45s ease,opacity .3s ease,transform .45s ease;overflow:hidden}
.why-source-card h3{font-size:24px;margin:20px 0 26px;color:#161d31}.why-source-card p{font-size:17px;line-height:1.75;color:#5e6675;margin:0}.why-source-no{display:block;font-size:76px;line-height:1;font-weight:700;color:#e6e6e6}
.why-source-card.is-left{left:0}.why-source-card.is-right{left:76%}.why-source-card.is-active{left:25%;top:0;width:50%;height:414px;padding:0;background:#3980f5;color:#fff;opacity:1;z-index:3;display:grid;grid-template-columns:38% 62%;box-shadow:0 16px 35px rgba(41,108,224,.16)}
.why-source-card.is-active .why-source-photo{display:block;width:100%;height:100%;object-fit:cover;border:4px solid #fff;border-radius:5px}
.why-source-copy{padding:48px 42px}.why-source-card.is-active .why-source-no{font-size:62px;color:rgba(255,255,255,.18)}.why-source-card.is-active h3{color:#fff;margin:10px 0 30px}.why-source-card.is-active p{color:#fff;font-size:17px}.why-source-card:not(.is-active) .why-source-photo{display:none}.why-source-card:not(.is-active) .why-source-copy{padding:0}
.why-source-decor{color:#ffbd25;letter-spacing:4px;font-size:21px;margin:0 0 28px}.why-source-card:not(.is-active) .why-source-decor{display:none}
.why-source-arrow{position:absolute;z-index:6;top:187px;width:52px;height:52px;border-radius:50%;border:2px solid #76a8fb;background:#fff;color:#4b91fb;font-size:32px;line-height:42px;cursor:pointer}.why-source-prev{left:calc(25% - 27px)}.why-source-next{right:calc(25% - 27px)}
.why-source-card.is-moving{transform:translateX(12px);opacity:.72}
@media(max-width:1050px){.choose-parity.why-source{padding-left:20px;padding-right:20px}.why-source-card{width:25%}.why-source-card.is-right{left:75%}.why-source-card.is-active{left:22%;width:56%}.why-source-prev{left:calc(22% - 27px)}.why-source-next{right:calc(22% - 27px)}}
@media(max-width:720px){.why-source-title{font-size:30px;margin-bottom:35px}.why-source-stage{height:520px}.why-source-card:not(.is-active){display:none}.why-source-card.is-active{left:0;width:100%;height:500px;grid-template-columns:1fr;grid-template-rows:230px 1fr}.why-source-copy{padding:24px 28px}.why-source-card.is-active .why-source-no{display:none}.why-source-card.is-active h3{font-size:22px;margin:0 0 14px}.why-source-card.is-active p{font-size:15px}.why-source-decor{margin-bottom:12px}.why-source-arrow{top:205px}.why-source-prev{left:-7px}.why-source-next{right:-7px}}