.webinars-blue--wrapper {
    background: radial-gradient(175.87% 231.05% at 53.96% 26.2%, #1c8fbf 0%, #0a517e 100%);
}

.webinars-blue--wrapper .container {
    padding: 48px 15px 40px 15px;
}

.webinars-blue--items {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
}

.webinars-blue--item {
    width: 25%;
    padding: 32px 10px;
    position: relative;
    font-family: "Roboto", sans-serif;
    font-size: 20px;
    color: #fff;
    box-sizing: border-box;
    overflow: visible;

    display: flex;
    flex-direction: column;
    justify-content: flex-start;

    min-height: 240px;
}

.webinars-blue--item::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 120%;          /* увеличиваем, чтобы картинка была заметна */
    height: 100%;
    background-repeat: no-repeat;
    background-position: center;
    /* ключевая правка: картинка помещается полностью и сохраняет пропорции */
    background-size: contain;
    background-image: var(--icon);
    z-index: 0;
    opacity: .8;
    pointer-events: none;
}


.webinars-blue--item span,
.webinars-blue--item {
    position: relative;
    z-index: 1;
    display: inline-block;
}


.webinars-blue--wrapper .webinars-blue--item span {
    font-weight: 700;
    font-size: 24px;
}

@media (max-width: 767px) {
    .webinars-blue--items {
        display: block;
    }

    .webinars-blue--item {
        width: 100%;
        min-height: 220px;
    }
}