/* =========================================================
   特集セクション（トップページ） — 編集部の目次風 / 落ち着いた白ベース
   ========================================================= */
.aind-feature {
    --feature-accent: #2563eb;
    --feature-ink: #1a1a2e;
    --feature-line: #e5e7eb;
    --feature-muted: #64748b;
    margin-top: 56px;
}

/* セクションヘッダー — 他セクション (.aind-cat__header) に揃える */
.aind-feature__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #d1d5db;
}

.aind-feature__heading {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a2e;
    margin: 0;
}

.aind-feature__sub {
    font-size: 13px;
    color: #64748b;
    margin: 0;
    white-space: nowrap;
}

/* スタック */
.aind-feature__stack {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* カード本体 */
.aind-feature__card {
    background: #fff;
    border: 1px solid var(--feature-line);
    overflow: hidden;
    transition: border-color 0.2s;
}

.aind-feature__card:hover {
    border-color: #cbd5e1;
}

/* ヘッダー部 */
.aind-feature__head {
    padding: 18px 22px 20px;
}

@media (max-width: 600px) {
    .aind-feature__head {
        padding: 14px 16px 16px;
    }
}

.aind-feature__label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 10.5px;
    font-weight: 700;
    color: var(--feature-accent);
    letter-spacing: 0.12em;
    margin-bottom: 4px;
    text-transform: uppercase;
}

.aind-feature__label-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--feature-accent);
    border-radius: 50%;
}

.aind-feature__title {
    display: block;
    font-size: 19px;
    font-weight: 800;
    color: var(--feature-ink);
    line-height: 1.4;
    letter-spacing: -0.005em;
    margin: 0 0 6px;
    text-decoration: none;
}

.aind-feature__title:hover {
    color: var(--feature-accent);
}

.aind-feature__lead {
    font-size: 12.5px;
    line-height: 1.7;
    color: var(--feature-muted);
    margin: 0 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* CTAボタン (outlined ダーク + 矢印円) */
.aind-feature__cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 6px;
    padding: 7px 10px 7px 18px;
    background: #fff;
    color: var(--feature-ink);
    border: 1px solid var(--feature-ink);
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-decoration: none;
    border-radius: 999px;
    transition: background 0.25s ease, color 0.25s ease;
}

.aind-feature__cta em {
    font-style: normal;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--feature-ink);
    color: #fff;
    font-size: 11px;
    line-height: 1;
    transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.aind-feature__cta:hover {
    background: var(--feature-ink);
    color: #fff;
}

.aind-feature__cta:hover em {
    background: #fff;
    color: var(--feature-ink);
    transform: translateX(2px);
}

/* ─────────────────────────────
   記事リスト
   ───────────────────────────── */
.aind-feature__list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--feature-line);
    background: #fafbfc;
}

.aind-feature__list li {
    margin: 0;
    padding: 0;
    border-bottom: 1px solid var(--feature-line);
}

.aind-feature__list li:last-child {
    border-bottom: none;
}

.aind-feature__row {
    display: grid;
    grid-template-columns: 36px 90px 1fr 20px;
    gap: 12px;
    align-items: center;
    padding: 11px 22px;
    text-decoration: none;
    transition: background 0.15s;
}

.aind-feature__row:hover {
    background: #fff;
}

@media (max-width: 600px) {
    .aind-feature__row {
        grid-template-columns: 28px 1fr 16px;
        gap: 8px;
        padding: 10px 16px;
    }
    .aind-feature__row-cat {
        display: none;
    }
}

.aind-feature__row-no {
    font-size: 13px;
    font-weight: 800;
    color: var(--feature-accent);
    letter-spacing: -0.02em;
    line-height: 1;
    font-feature-settings: "tnum";
}

.aind-feature__row-cat {
    font-size: 10.5px;
    color: var(--feature-muted);
    font-weight: 600;
    letter-spacing: 0.04em;
    border-right: 1px solid var(--feature-line);
    padding-right: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.aind-feature__row-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--feature-ink);
    line-height: 1.5;
    transition: color 0.15s;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.aind-feature__row:hover .aind-feature__row-title {
    color: var(--feature-accent);
}

.aind-feature__row-arrow {
    font-size: 13px;
    color: #cbd5e1;
    transition: color 0.15s, transform 0.2s;
    text-align: right;
}

.aind-feature__row:hover .aind-feature__row-arrow {
    color: var(--feature-accent);
    transform: translateX(2px);
}

/* =========================================================
   特集 単体ページ (single-feature.php) — Pattern A 系統
   ========================================================= */
.aind-feature-single {
    --feature-accent: #2563eb;
    --feature-ink: #1a1a2e;
    --feature-line: #e5e7eb;
    --feature-muted: #64748b;
    max-width: 920px;
    margin: 0 auto;
    padding: 8px 0 56px;
}

.aind-feature-single__hero {
    background: #fff;
    border: 1px solid var(--feature-line);
    padding: 24px 28px 22px;
    margin-bottom: 24px;
}

@media (max-width: 700px) {
    .aind-feature-single__hero {
        padding: 20px 18px 18px;
    }
}

.aind-feature-single__label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 10.5px;
    font-weight: 700;
    color: var(--feature-accent);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.aind-feature-single__label-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--feature-accent);
    border-radius: 50%;
}

.aind-feature-single__title {
    font-size: clamp(20px, 2.4vw, 26px);
    font-weight: 800;
    line-height: 1.4;
    letter-spacing: -0.005em;
    color: var(--feature-ink);
    margin: 0 0 8px;
}

.aind-feature-single__desc {
    font-size: 13px;
    line-height: 1.8;
    color: #374151;
    margin: 0;
}

/* ─── 記事リスト ─── */
.aind-feature-single__section-heading {
    font-size: 14px;
    font-weight: 700;
    color: var(--feature-ink);
    margin: 0 0 14px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--feature-accent);
    display: inline-block;
    letter-spacing: 0.02em;
}

.aind-feature-single__list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

@media (max-width: 700px) {
    .aind-feature-single__list {
        grid-template-columns: 1fr;
    }
}

.aind-feature-single__item {
    position: relative;
    display: grid;
    grid-template-columns: 28px 120px 1fr;
    gap: 12px;
    background: #fff;
    border: 1px solid var(--feature-line);
    padding: 11px;
    text-decoration: none;
    transition: border-color 0.2s, transform 0.2s;
}

.aind-feature-single__item:hover {
    border-color: var(--feature-accent);
    transform: translateY(-1px);
}

.aind-feature-single__item-no {
    font-size: 16px;
    font-weight: 800;
    color: var(--feature-accent);
    letter-spacing: -0.02em;
    line-height: 1;
    align-self: start;
    padding-top: 3px;
    font-feature-settings: "tnum";
}

.aind-feature-single__item-thumb {
    aspect-ratio: 4 / 3;
    background: #f3f4f6;
    overflow: hidden;
}

.aind-feature-single__item-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.aind-feature-single__item-text {
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.aind-feature-single__item-cat {
    font-size: 10px;
    color: var(--feature-muted);
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}

.aind-feature-single__item-title {
    font-size: 12.5px;
    font-weight: 700;
    color: var(--feature-ink);
    line-height: 1.55;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.aind-feature-single__item:hover .aind-feature-single__item-title {
    color: var(--feature-accent);
}

.aind-feature-single__item-date {
    font-size: 10.5px;
    color: #94a3b8;
    margin-top: 5px;
    letter-spacing: 0.04em;
}