/* ==========================================================================
   事業案内ページ（business.php）
   ========================================================================== */

.business-page.site-main {
    padding: 0;
    max-width: none;
    margin-top: 0;
}

.business-page {
    --business-mincho: "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
    --business-align-x: 40px;
    --business-inset-right: 72px;
    --business-gray: #f3f4f6;
    --business-active: #2563eb;
    --business-gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --business-scroll-offset: 120px;

    width: 100%;
    max-width: 100%;
    padding-bottom: 120px;
    background: transparent;
    color: #111111;
    overflow: visible;
    box-sizing: border-box;
}

/* --------------------------------------------------------------------------
   メイン（左ナビ縦並び ＋ 右コンテンツ）
   -------------------------------------------------------------------------- */
.business-page__main {
    display: grid;
    grid-template-columns: minmax(200px, 320px) minmax(0, 1fr);
    align-items: start;
    gap: 0;
    width: 100%;
    max-width: 100%;
    min-width: 0;
}

/* --------------------------------------------------------------------------
   ナビ（左・縦並び・スクロール連動）
   -------------------------------------------------------------------------- */
.business-nav-sticky {
    position: sticky;
    top: 100px;
    z-index: 50;
    align-self: start;
    min-width: 0;
}

.business-nav {
    margin: 0;
    padding: 8px var(--business-align-x) 48px;
    background: #ffffff;
    border-right: 1px solid #e5e7eb;
}

.business-nav__list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.business-nav__item {
    margin: 0;
}

.business-nav__heading {
    margin: 0;
    font: inherit;
    font-size: inherit;
    font-weight: inherit;
}

.business-nav__link {
    display: block;
    padding: 14px 12px 14px 16px;
    font-size: 0.88rem;
    font-weight: 600;
    line-height: 1.45;
    letter-spacing: 0.03em;
    color: #666666;
    text-decoration: none;
    transition: opacity 0.25s;
}

.business-nav__link:hover {
    opacity: 0.75;
}

.business-nav__link.is-active {
    background: var(--business-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    opacity: 1;
}

/* --------------------------------------------------------------------------
   事業ブロック（薄いグレー・右に余白）
   -------------------------------------------------------------------------- */
.business-page__body {
    display: flex;
    flex-direction: column;
    gap: 8rem;
    min-width: 0;
    padding: 0 0 5rem 0;
}

.business-block {
    margin: 0 var(--business-inset-right) 0 0;
    max-width: 100%;
    box-sizing: border-box;
    background: var(--business-gray);
    border-radius: 0 12px 12px 0;
    scroll-margin-top: var(--business-scroll-offset, 120px);
}

.business-block__inner {
    padding: clamp(48px, 6vw, 72px) clamp(32px, 5vw, 56px) clamp(48px, 6vw, 72px) var(--business-align-x);
    box-sizing: border-box;
}

.business-block__head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(140px, 26%);
    gap: 28px 32px;
    align-items: center;
    margin-bottom: 36px;
}

.business-block__name {
    margin: 0;
    font-family: var(--business-mincho);
    font-size: clamp(1.75rem, 3.2vw, 2.5rem);
    font-weight: 800;
    line-height: 1.35;
    letter-spacing: 0.08em;
    color: #111111;
}

.business-block__figure {
    margin: 0;
    max-width: 260px;
    justify-self: end;
    border-radius: 8px;
    overflow: hidden;
    background: #e5e7eb;
}

.business-block__figure img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.business-block__lead {
    margin: 0 0 28px;
    font-family: var(--business-mincho);
    font-size: clamp(1.15rem, 2vw, 1.5rem);
    font-weight: 700;
    line-height: 1.75;
    letter-spacing: 0.04em;
    color: #111111;
}

.business-block__body {
    margin: 0 0 40px;
    font-size: 0.98rem;
    line-height: 2.15;
    color: #333333;
}

.business-block__cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    width: 100%;
    min-width: 0;
}

/* タブレット：2カラム */
@media screen and (max-width: 1100px) {
    .business-block__cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* 狭い画面：1カラム */
@media screen and (max-width: 700px) {
    .business-block__cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.business-card {
    min-width: 0;
    background: #ffffff;
    padding: 28px 24px 32px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.business-card__title {
    margin: 0 0 12px;
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 0.03em;
    color: #111111;
}

.business-card__text {
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.9;
    color: #555555;
}

/* --------------------------------------------------------------------------
   スマートフォン
   -------------------------------------------------------------------------- */
@media screen and (max-width: 1024px) {
    .business-page {
        --business-align-x: 20px;
        --business-inset-right: 20px;
        padding-bottom: 80px;
    }

    .business-page__main {
        display: block;
        width: 100%;
        min-width: 0;
        overflow: visible;
    }

    .business-nav-sticky {
        position: static;
        z-index: auto;
        width: 100%;
        max-width: 100%;
        margin: 0;
    }

    .business-nav {
        width: 100%;
        max-width: 100%;
        margin: 0;
        padding: 0;
        border-right: none;
        border-bottom: 1px solid #e5e7eb;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(8px);
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-x: contain;
        touch-action: pan-x;
    }

    .business-nav__list {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        align-items: center;
        gap: 4px;
        width: max-content;
        min-width: 100%;
        margin: 0;
        padding: 12px var(--business-align-x);
        box-sizing: border-box;
    }

    .business-nav__list::-webkit-scrollbar {
        display: none;
    }

    .business-nav__item {
        flex: 0 0 auto;
    }

    .business-nav__link {
        font-size: 0.85rem;
        padding: 10px 16px;
        white-space: nowrap;
    }

    .business-page__body {
        gap: 5rem;
        width: 100%;
        min-width: 0;
        padding: 0;
    }

    .business-block {
        margin-right: var(--business-inset-right);
        border-radius: 0 8px 8px 0;
        scroll-margin-top: var(--business-scroll-offset, 160px);
    }

    .business-block__inner {
        padding: 36px 20px;
    }

    .business-block__name {
        font-size: clamp(1.4rem, 5vw, 1.75rem);
        word-break: break-word;
    }

    .business-block__lead,
    .business-block__body,
    .business-card__text {
        word-break: break-word;
        overflow-wrap: anywhere;
    }

    .business-block__figure {
        max-width: 100%;
        justify-self: stretch;
    }

    .business-block__head {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 28px;
    }

    .business-block__figure {
        order: -1;
    }

    .business-block__lead {
        margin-bottom: 20px;
    }

    .business-block__body {
        margin-bottom: 28px;
    }
}