/* style_top.css */
section {
    margin: 3rem 0;
}
section#top-concept {
    margin-top: 0;
}
section#top-image {
    margin: 6rem 0 4rem;
}
#top-concept h2 {
    color: #FFFFFF;
    font-size: 12vw;
    line-height: 1.7;
}
#top-concept p {
    font-size: 3.4vw;
    line-height: 2.5;
}
.concept-area {
    position: relative;
}
.concept-area .img-area {
    position: absolute;
    width: 40%;
    top: 2rem;
    right: -3rem;
}
.lead-copy {
    padding-top: 2rem;
}
#top-image {
    position: relative;
}
#top-image .visual-spacer {
    aspect-ratio: 1 / 1.8;
}
#top-image .img {
    position: absolute;
}
#top-image .img.a {
    top: 0;
    left: 50%;
    width: 70%;
    aspect-ratio: 3 / 2;
    transform: translateX(-15%);
}
#top-image .img.b {
    top: 24%;
    left: -5%;
    width: 47%;
    aspect-ratio: 2 / 3;
}
#top-image .img.c {
    bottom: 0;
    right: 10%;
    width: 47%;
    aspect-ratio: 2 / 3;
}
#top-image .img.logo {
    top: 50%;
    left: 50%;
    width: 50vw; /* 画面幅基準 */
    transform: translate(5%, -100%);
    opacity: 0.2;
    right: -2%;
}
/* reveal animation */
#top-image .img-inner {
    width: 100%;
    height: 100%;
}
#top-image .reveal {
    opacity: 0;
    transform: translateY(24px);
    filter: blur(6px);
    transition:
        opacity 900ms ease, transform 1200ms cubic-bezier(.2, .8, .2, 1), filter 1200ms ease;
}
#top-image .reveal.right {
    transform: translateX(-24px);
}
#top-image .reveal.up {
    transform: translateY(24px);
}
#top-image .reveal.down {
    transform: translateY(-24px);
}
#top-image .reveal.is-in {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
}
/* 動きを減らす設定の人向け */
@media (prefers-reduced-motion: reduce) {
    #top-image .reveal {
        transition: none;
        opacity: 1;
        transform: none;
        filter: none;
    }
}
#top-concept h2, #top-concept p {
    opacity: 0;
    transform: translateY(24px);
}
#top-concept.is-in h2 {
    opacity: 1;
    transform: translateY(0);
    transition: 1.2s ease;
}
#top-concept.is-in p {
    opacity: 1;
    transform: translateY(0);
    transition: 1.4s ease;
    transition-delay: 0.3s;
}
/* 仮 */
.section-title {
    color: white;
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
}
/* NEWS */
section#news {
    padding-top: 3rem;
}
.news_list {
    font-size: 1rem;
    margin: 0 auto;
    list-style: none;
    display: grid;
    gap: 1rem;
    margin-bottom: 3rem;
}
.news-item {
    display: grid;
    grid-template-columns: 1fr 28px; /* 本文エリア + 矢印 */
    grid-template-rows: auto auto; /* 1段目:日付+タグ / 2段目:タイトル */
    gap: 6px 12px;
    text-decoration: none;
    border-bottom: 1px solid #E1E1E1;
    padding-bottom: 1rem;
}
/* 日付（左上） */
.news-item_date {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
    letter-spacing: 0.1em;
    color: #333;
}
/* タイトル（下段） */
.news-item_title {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: #333;
}
@media (min-width: 768px) {
    /* 共通 */
    #main {
        padding-top: 10rem;
    }
    section {
        margin: 5rem 0;
    }
    #top-concept h2 {
        font-size: 7vw;
    }
    #top-concept p {
        font-size: 1.3vw;
    }
    .concept-area .img-area {
        width: 30%;
        top: 0;
        right: -3rem;
    }
    #top-image .visual-spacer {
        aspect-ratio: 1 / 1.2;
    }
    #top-image .img.a {
        top: 0;
        left: 50%;
        width: 45%;
        aspect-ratio: 3 / 2;
        transform: translateX(-10%);
    }
    #top-image .img.b {
        top: 25%;
        left: 10%;
        width: 30%;
        aspect-ratio: 2 / 3;
    }
    #top-image .img.c {
        bottom: 0;
        right: 20%;
        width: 30%;
        aspect-ratio: 2 / 3;
    }
    #top-image .img.logo {
        top: 50%;
        left: 50%;
        width: 30vw; /* 画面幅基準 */
        transform: translate(5%, -100%);
        opacity: 0.2;
        right: -2%;
    }
    /* NEWS */
    .news_list {
        padding: 0 24px;
        gap: 16px;
        max-width: 1200px;
    }
    .news_list .news-item {
        grid-template-columns: 100px 1fr 28px; /* 日付 / タグ / タイトル / 矢印 */
        grid-template-rows: 1fr; /* ← 1行だけに固定 */
        align-items: center;
        gap: 16px;
        padding: 18px 24px 18px 36px;
    }
    .news-item_date {
        grid-column: 1;
        grid-row: 1;
    }
    .news-item_title {
        grid-column: 2;
        grid-row: 1;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        -webkit-line-clamp: unset;
        display: block;
        min-width: 0; /* ← グリッド内で省略が効くように */
    }
}
@media screen and (min-width: 1400px) {
    #top-concept h2 {
        font-size: 98px;
    }
    #top-concept p {
        font-size: 18.2px;
    }
    .concept-area .img-area {
        width: 420px;
    }
}
}