/* ========================================
   SR7 利用シーン・導入事例
======================================== */

.product-case-section {
    padding: 5em 0;
    background: #f5f5f5;
}

.product-case-section *,
.product-case-section *::before,
.product-case-section *::after {
    box-sizing: border-box;
}


/* 見出し
---------------------------------------- */

.product-case-section .product-case-heading {
    margin: 0 0 2em;
    padding: 0;
    color: #444;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.4;
    text-align: center;
}


/* 3カード
---------------------------------------- */

.product-case-section .product-case-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2em;
    align-items: stretch;
}


/* カード本体
---------------------------------------- */

.product-case-section .product-case-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    margin: 0;

    /* リボンをカード外へ出すため hidden にしない */
    overflow: visible;

    background: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
}


/* 画像エリア
---------------------------------------- */

.product-case-section .product-case-image {
    position: relative;
    flex-shrink: 0;
    margin: 0;
    overflow: visible;
}

/* 画像だけはカードの角丸に収める */
.product-case-section .product-case-image a {
    display: block;
    margin: 0;
    padding: 0;

    overflow: hidden;
    border-radius: 4px 4px 0 0;
}

.product-case-section .product-case-image img {
    display: block;
    width: 100%;
    aspect-ratio: 410 / 165;
    height: auto;
    margin: 0;
    object-fit: cover;
}


/* 左肩のオレンジラベル
---------------------------------------- */

.product-case-section .product-case-label {
    position: absolute;
    top: 0.5em;
    left: -6px;
    z-index: 3;

    display: inline-block;
    width: auto;
    max-width: calc(100% - 1em);

    margin: 0;
    padding: 0.75em 0.5em;

    background: #FF7234;
    color: #fff;

    font-size: 0.9em;
    font-weight: 400;
    line-height: 1.35;
    letter-spacing: 0.75px;
    white-space: nowrap;
}

/* 左下の折り返し部分 */
.product-case-section .product-case-label::after {
    position: absolute;
    left: 0;
    top: 100%;

    width: 0;
    height: 0;

    content: "";

    border-top: 6px solid #A14821;
    border-left: 6px solid transparent;
}


/* テキスト部分
---------------------------------------- */

.product-case-section .product-case-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 1.5em;
}

.product-case-section .product-case-body h3 {
    margin: 0;
    padding: 0;

    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.55;
}

.product-case-section .product-case-body h3 a {
    color: #19b99a;
    text-decoration: none;
}

.product-case-section .product-case-body h3 a:hover {
    opacity: 0.75;
}

.product-case-section .product-case-body h3 i {
    margin-right: 0.45em;
    color: #19b99a;
}

.product-case-section .product-case-body p {
    margin: 1.1em 0 0;
    padding: 0;

    color: #555;
    font-size: 1rem;
    line-height: 1.8;
}

/* ========================================
   タブレット：3列 → 2列
======================================== */

@media screen and (max-width: 980px) {

    .product-case-section {
        padding: 4em 0;
    }

    .product-case-section .product-case-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 2em;
    }

    .product-case-section .product-case-card {
        width: 100%;
        max-width: none;
        margin: 0;
    }
}


/* ========================================
   スマートフォン：2列 → 1列
======================================== */

@media screen and (max-width: 736px) {

    .product-case-section {
        padding: 3.5em 0;
    }

    .product-case-section .product-case-list {
        grid-template-columns: 1fr;
    }

    .product-case-section .product-case-card {
        width: 83.333333%;
        max-width: none;
        margin-left: auto;
        margin-right: auto;
    }

    .product-case-section .product-case-heading {
        margin-bottom: 1.5em;
        font-size: 1.6rem;
    }

    .product-case-section .product-case-body {
        padding: 1.25em;
    }

    .product-case-section .product-case-body h3 {
        font-size: 1.05rem;
    }
}