.btn--gradient {
    background: linear-gradient(to right, #00c8a0, #6446f5);
    color: #fff;
    position: relative;
    overflow: hidden;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}
@media screen and (min-width: 769px) {
    .btn--gradient:hover,
    .btn--gradient:active {
        filter: brightness(115%);
    }
}

.header__menu {
    background: linear-gradient(to right, #6446f5, #927df8);
}

.list-news .item__cat a, .list-news .item__cat span {
    background: linear-gradient(to right, #6446f5, #927df8);
}

#page_top {
    background: linear-gradient(to bottom, #6446f5, #927df8);
}

.mv__title div:first-child {
    font-size: 54px;
}
.mv__title div:nth-of-type(2) {
    font-size: 54px;
}

.mv__title span span,
.mv__title-en span span {
  display: inline-block;
}

.mv__title span span,
.mv__title-en span span {
  white-space: pre;
}

.mv__title-ja span{
    padding:0 0 2px;
}
.outline_contents_desc {
    text-align: center;
    margin: 0 0 25px;
}
.outline_contents_graph {
    margin: 0 0 25px;
}
.outline_contents_btn a {
    margin: 0 auto;
}
.sec.story .block__desc{
    text-align: justify;
}


@media screen and (max-width: 768px) {
    .mv__title div:first-child {
        font-size: 30px;
        line-height: 1.2em;
    }
    .mv__title div:nth-of-type(2) {
        font-size: 30px;
        line-height: 1.2em;
    }
    .mv__title-en {
        padding: 0 15px;
    }
    .sec.story .story__title br {
        display: inline-block;
    }

    .outline_contents_graph img {
        width: 100%;
        height: auto;
        max-width: 414px;
        margin: 0 auto;
    }
}