/* ============================================================
   business.css — 事業内容ページ
   日本コロイド株式会社
   ============================================================ */

/* ============================================================
   イントロダクション
   ============================================================ */
.biz-intro {
    padding: 8rem 0 10rem;
    background: var(--color-white);
}

.biz-intro__catch {
    margin-bottom: 3.2rem;
    font-size: clamp(2.8rem, 3vw, 4.2rem);
    font-weight: 700;
    color: var(--color-main);
    line-height: 1.6;
    text-align: center;
}

.biz-intro__catch span {
    display: inline-block;
}


.biz-intro__lead {
    max-width: 900px;
    margin: 0 auto;
    color: var(--color-text);
    line-height: 2;
    text-align: center;

}

.biz-intro__lead p {
    font-weight: 600;
    font-size: clamp(1.6rem, 1.5vw, 2rem);
}

.biz-intro__lead p+p {
    margin-top: 1.6rem;
}

@media (max-width: 768px) {
    .biz-intro {
        padding: 5.6rem 0;
    }

    .biz-intro__catch {
        margin-bottom: 2.4rem;
        font-size: clamp(2.6rem, 5.5vw, 3.4rem);
    }

    .biz-intro__lead {
        line-height: 1.9;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .biz-intro__catch span {
        display: block;
    }
}


/* ============================================================
   事業内容セクション（製麺 / 製菓・製パン）
   ============================================================ */
.biz-section {
    padding: 8rem 0;
    scroll-margin-top: calc(var(--header-h) + 42px);
}

.biz-section:last-of-type {
    padding-bottom: 8rem;
}

/* セクション見出し（画像+テキスト 横並び） */
.biz-section__intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6.4rem;
    align-items: start;
    margin-bottom: 6.4rem;
}

/* 製菓・製パンは画像を右に */
.biz-section__intro--reverse .biz-section__img {
    order: 2;
}

.biz-section__img {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: 30px;
}

.biz-section__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.biz-section__text {}

.biz-section__en {
    font-family: var(--font-en);
    font-size: clamp(1.2rem, 1.1vw, 1.4rem);
    font-weight: 700;
    color: var(--color-main);
    letter-spacing: 0.12em;
    line-height: 1;
    margin-bottom: 0.8rem;
}

.biz-section__ja {
    font-size: clamp(2.2rem, 2.5vw, 3.2rem);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.35;
    margin-bottom: 2rem;
}

.biz-section__lead {
    line-height: 2;
    color: var(--color-text-light);
    margin-bottom: 2.4rem;
}

/* 対応種別タグ */
.biz-section__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.biz-section__tag {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1.4rem;
    border: 1.5px solid var(--color-main);
    color: var(--color-main);
    font-size: clamp(1.2rem, 1.1vw, 1.4rem);
    font-weight: 600;
    white-space: nowrap;
}

@media (max-width: 1024px) {
    .biz-section__intro {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }
}

@media (max-width: 768px) {
    .biz-section {
        padding: 5.6rem 0;
    }

    .biz-section__intro {
        grid-template-columns: 1fr;
        gap: 3.2rem;
        margin-bottom: 4.8rem;
    }

    .biz-section__intro--reverse .biz-section__img {
        order: 0;
    }

    .biz-section__ja {
        font-size: clamp(2rem, 5.5vw, 2.8rem);
    }
}


/* ============================================================
   特徴カード（3カラム or 2カラム）
   ============================================================ */
.biz-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.4rem;
    margin-bottom: 5.6rem;

}

.biz-features--2col {
    grid-template-columns: repeat(2, 1fr);
}

.biz-feature {
    position: relative;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    padding: 3.2rem 3.2rem 3.6rem;
}

.biz-feature::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--color-main);
}

.biz-feature__num {
    font-family: var(--font-en);
    font-size: clamp(2.4rem, 2.5vw, 3.2rem);
    font-weight: 700;
    color: var(--color-main);
    line-height: 1;
    margin-bottom: 1.2rem;
    letter-spacing: -0.02em;
}

.biz-feature__title {
    font-size: clamp(1.5rem, 1.5vw, 1.8rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 1.2rem;
    line-height: 1.4;
}

.biz-feature__desc {
    line-height: 1.9;
}

@media (max-width: 1024px) {
    .biz-features {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }

    .biz-features--2col {
        grid-template-columns: repeat(2, 1fr);
    }

    .biz-feature {
        padding: 2.4rem;
    }
}

@media (max-width: 768px) {

    .biz-features,
    .biz-features--2col {
        grid-template-columns: 1fr;
        gap: 1.6rem;
        margin-bottom: 4rem;
    }
}


/* ============================================================
   スペックテーブル
   ============================================================ */
.biz-spec {
    margin-bottom: 8rem;
}

.biz-spec__table {
    width: 100%;
    border-collapse: collapse;
}

.biz-spec__table tr {
    background: var(--color-bg-green);
}

.biz-spec__table th,
.biz-spec__table td {
    padding: 2rem 2.4rem;
    border: var(--color-border) 1px solid;
}

.biz-spec__table th {
    width: 160px;
    background: var(--color-main);
    color: var(--color-white);
    font-size: clamp(1.3rem, 1.2vw, 1.5rem);
    font-weight: 700;
    white-space: nowrap;
}

.biz-spec__table td {
    color: var(--color-text);
    line-height: 1.85;
}

@media (max-width: 768px) {

    .biz-spec__table th {
        padding: 1rem 2rem;
        border: none;
    }

    .biz-spec__table th {
        width: auto;
        display: block;
    }

    .biz-spec__table td {
        display: block;
        padding: 1rem 2rem;
    }

    .biz-spec__table,
    .biz-spec__table tbody,
    .biz-spec__table tr {
        display: block;
    }
}

/* ============================================================
   ボタン行
   ============================================================ */
.biz-btn-row {
    display: flex;
    justify-content: center;
}

@media (max-width: 768px) {
    .biz-btn-row {
        flex-direction: column;
    }

    .biz-btn-row .btn {
        width: 100%;
        justify-content: center;
    }
}


/* ============================================================
   FAQ セクション
   ============================================================ */
.biz-faq {
    padding: 8rem 0 9rem;
}

.biz-faq__all {
    display: flex;
    width: fit-content;
    align-items: center;
    gap: 0.6rem;
    margin-top: 2.4rem;
    margin-left: auto;
    margin-right: 1rem;
    font-weight: 700;
    color: var(--color-text-light);
    text-decoration: none;
}

.biz-faq__all:hover {
    color: var(--color-main);
    opacity: 1;
}

.biz-faq__all-arrow {
    display: inline-block;
    transition: transform 0.2s;
}

.biz-faq__all:hover .biz-faq__all-arrow {
    transform: translateX(0.6rem);
}


/* ============================================================
   製品ラインナップ
   ============================================================ */
.biz-lineup {
    margin-bottom: 6rem;
}


.biz-lineup__title {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    font-size: clamp(1.6rem, 1.4vw, 1.8rem);
    font-weight: 700;
    color: var(--color-text);
    border-bottom: none;
    margin-bottom: 3rem;
}

.biz-lineup__title::before {
    content: "";
    flex-shrink: 0;
    width: 4px;
    height: 1.8em;
    background: var(--color-main);
}

.biz-lineup__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.biz-lineup__card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
    display: flex;
    flex-direction: column;
    height: 100%;
    color: inherit;
    text-decoration: none;
    transition: box-shadow 0.25s, transform 0.25s;
    border-radius: 10px;
}

.biz-lineup__card:hover {
    transform: translateY(-2px);
    opacity: 1;
}


/* テキストエリア */
.biz-lineup__body {
    padding: 2rem 2.2rem 1.4rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}


/* バッジ */
.biz-lineup__badges {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.2rem;
}

.biz-lineup__cat {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.9rem;
    background: var(--color-main);
    color: var(--color-white);
    font-size: clamp(1rem, 0.9vw, 1.2rem);
    font-weight: 700;
    border-radius: 2px;
    white-space: nowrap;
}

.biz-lineup__trouble {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.8rem;
    border: 1px solid var(--color-border);
    color: var(--color-text-light);
    font-size: clamp(1.2rem, 0.9vw, 1.3rem);
    font-weight: 600;
    white-space: nowrap;
}


/* 商品名 */
.biz-lineup__name {
    font-size: clamp(1.7rem, 1.5vw, 2rem);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.5;
    margin: 0 0 2.4rem;
    transition: color 0.2s;
}

.biz-lineup__card:hover .biz-lineup__name {
    color: var(--color-main);
}


/* 詳しく見る */
.biz-lineup__link {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.4rem;
    margin-top: auto;
    font-size: clamp(1.3rem, 1.2vw, 1.5rem);
    font-weight: 700;
    color: var(--color-main);
}

.biz-lineup__link-icon {
    display: inline-block;
    font-family: var(--font-en);
    font-size: 1.4rem;
    transition: transform 0.2s;
}

.biz-lineup__card:hover .biz-lineup__link-icon {
    transform: translateX(0.4rem);
}

@media (max-width: 768px) {
    .biz-lineup__body {
        padding: 1.6rem;
    }

    .biz-lineup {
        margin-bottom: 3.2rem;
    }
}

@media (max-width: 599px) {
    .biz-lineup__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1rem;
    }

    .biz-lineup__link {
        font-size: 1rem;
    }

    /* 3件目以降を非表示 */
    .biz-lineup__card:nth-child(n + 3) {
        display: none;
    }

    .biz-lineup__card {
        min-width: 0;
    }

    .biz-lineup__body {
        min-width: 0;
        padding: 1.3rem;
    }

    .biz-lineup__badges {
        gap: 0.5rem;
    }

    .biz-lineup__cat,
    .biz-lineup__trouble {
        max-width: 100%;
        white-space: normal;
        overflow-wrap: anywhere;
    }

    .biz-lineup__name {
        font-size: 1.5rem;
        overflow-wrap: anywhere;
    }

    .biz-lineup__trouble {
        font-size: 1rem;
    }

    .biz-lineup__link {
        font-size: 1.2rem;
    }
}



/* ============================================================
   お役立ち情報（USE CASE / INFO）
   ============================================================ */
.biz-usecase {
    background: var(--color-bg-cream);
    padding: 6rem 0 8rem;
}

.biz-usecase__head {
    margin-bottom: 4rem;
}

.biz-usecase__lead {
    margin-bottom: 6rem;
}


/* .biz-usecase__title {
    font-size: clamp(2rem, 1.8vw, 2.2rem);
    font-weight: 700;
    color: var(--color-text);
} */

.biz-usecase__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.4rem;
    margin-bottom: 6rem;
}

.biz-usecase__card {
    background: var(--color-white);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.25s, transform 0.25s;
    border-radius: 10px;
}

.biz-usecase__card:hover {
    transform: translateY(-2px);
    opacity: 1;
}

.biz-usecase__img {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    flex-shrink: 0;
}

.biz-usecase__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.biz-usecase__body {
    padding: 2rem 2.4rem 2.8rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.biz-usecase__badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 1rem;
    border: 1.5px solid var(--color-main);
    color: var(--color-main);
    font-size: clamp(1.1rem, 1vw, 1.3rem);
    font-weight: 600;
    margin-bottom: 1.2rem;
    width: fit-content;
}

.biz-usecase__heading {
    font-size: clamp(1.5rem, 1.5vw, 1.8rem);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.5;
    margin-bottom: 1rem;
    transition: color 0.2s;
}

.biz-usecase__card:hover .biz-usecase__heading {
    color: var(--color-main);
}

/* .biz-usecase__desc {
    color: var(--color-text-light);
    line-height: 1.85;
    flex: 1;
} */

/* 詳しく見る */
.biz-usecase__link {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.4rem;
    margin-top: auto;
    font-size: clamp(1.3rem, 1.2vw, 1.5rem);
    font-weight: 700;
    color: var(--color-main);
}

.biz-usecase__link-icon {
    display: inline-block;
    font-family: var(--font-en);
    font-size: 1.4rem;
    transition: transform 0.2s;
}

.biz-usecase__card:hover .biz-usecase__link-icon {
    transform: translateX(0.4rem);
}


@media (max-width: 1024px) {
    .biz-usecase__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .biz-usecase {
        padding: 5.6rem 0;
    }

    .biz-usecase__grid {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .biz-usecase__card {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(0, 40%);
        align-items: start;
        gap: 1.6rem;
        padding: 2rem 0;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    .biz-usecase__card+.biz-usecase__card {
        border-top: 1px solid var(--color-border);
    }

    .biz-usecase__card:nth-child(n + 3) {
        display: none;
    }

    .biz-usecase__img {
        grid-column: 2;
        grid-row: 1;
        aspect-ratio: 16 / 9;
        border-radius: 4px;
    }

    .biz-usecase__body {
        grid-column: 1;
        grid-row: 1;
        min-width: 0;
        padding: 0;
        gap: 1rem;
    }

    .biz-usecase__heading {
        order: 1;
        margin: 0;
        font-size: 1.4rem;
        line-height: 1.6;
    }

    .biz-usecase__badge {
        order: 2;
        margin: 0;
        padding: 0.2rem 0.6rem;
        font-size: 1.1rem;
    }

    .biz-usecase__link {
        display: none;
    }
}