.column-page {
    background: #fff;
    color: #333;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.column-main {
    padding-top: var(--header-height);
}

.column-kv {
    aspect-ratio: 1280 / 512;
    width: 100%;
    min-height: 390px;
    overflow: hidden;
    background: transparent;
}

.column-kv__layer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

.column-kv__layer > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.column-kv__layer--back { z-index: 0; }
.column-kv__layer--front { z-index: 3; }

.column-kv__content {
    position: absolute;
    inset: 0;
    z-index: 2;
    width: 100%;
    margin: 0 auto;
}

.column-kv__heading {
    position: absolute;
    top: 2%;
    left: 50%;
    z-index: 2;
    width: 58vw;
    transform: translateX(-50%);
}

.column-kv__lead {
    margin: 0 0 1em;
    color: #555;
    font-size: clamp(10px, 1vw, 14px);
    font-weight: 500;
}

.column-kv__title {
    margin: 0 0 0.35em;
    color: #242424;
    font-size: clamp(17px, 2vw, 32px);
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: 0.025em;
}

.column-kv__heading time {
    font-size: clamp(12px, 1.15vw, 17px);
    font-weight: 700;
}

.column-kv__photo {
    position: absolute;
    left: 50%;
    bottom: 7%;
    width: 43vw;
    height: auto;
    aspect-ratio: 1000 / 564;
    transform: translateX(-50%);
    object-fit: cover;
    border-radius: clamp(12px, 1.2vw, 24px);
}

.column-article {
    padding: clamp(48px, 6vw, 90px) 0 80px;
    background: #fff;
}

.column-article__inner,
.related-columns {
    width: min(1000px, calc(100% - 48px));
    margin: 0 auto;
}

.column-article__inner > h2 {
    margin: 0 0 42px;
    padding: 7px 20px 8px;
    background: #84ca00;
    border: 2px solid #211815;
    color: #fff;
    font-size: clamp(18px, 2vw, 23px);
    line-height: 1.45;
    box-shadow: 5px 6px 0 #211815;
}

.column-article__inner > p {
    margin: 0 24px 1.8em;
    font-size: 16px;
    line-height: 1.8;
    text-align: justify;
}

.column-article__subheading {
    margin: 30px 24px 5px;
    color: #222;
    font-size: 18px;
    line-height: 1.5;
}

.column-article__image {
    width: 84%;
    margin: 50px auto 62px;
}

.column-article__image img {
    width: 100%;
    border-radius: 14px;
}

.column-article__image--square img {
    border-radius: 0;
}

.column-article__image.column-article__image--natural {
    width: fit-content;
    max-width: 100%;
}

.column-article__image--natural img {
    width: auto;
    max-width: 100%;
}

@media (min-width: 481px) {
    .column-article__image:not(.column-article__image--square) img {
        aspect-ratio: 79 / 25;
        object-fit: cover;
        object-position: center;
    }
}

.column-author {
    display: flex;
    align-items: center;
    gap: 26px;
    margin-top: 70px;
    padding: 18px 28px;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-image: repeating-linear-gradient(150deg, #cdeba2 0 7px, transparent 7px 13px) 8;
}

.column-author__portrait {
    flex: 0 0 110px;
    width: 110px;
    height: 160px;
    object-fit: contain;
}

.column-author__body h2 {
    margin-bottom: 4px;
    color: #80c800;
    font-size: 17px;
}

.column-author__body p {
    font-size: 13px;
    line-height: 1.65;
}

.column-author__name {
    margin-top: 3px;
    font-size: 17px !important;
    font-weight: 700;
}

.related-columns {
    margin-top: 110px;
}

.related-columns > h2 {
    width: min(380px, 100%);
    margin: 0 auto 48px;
    padding-bottom: 4px;
    background: linear-gradient(to bottom, transparent calc(100% - 9px), #83ca00 calc(100% - 9px));
    color: #111;
    font-size: 24px;
    line-height: 1;
    text-align: center;
}

.related-columns__list {
    display: flex;
    justify-content: center;
    gap: 15px;
    width: min(660px, 100%);
    margin: 0 auto;
}

.related-card {
    display: block;
    flex: 0 1 calc((100% - 30px) / 3);
    min-width: 0;
    overflow: hidden;
    border: 1px solid #bbb;
    border-radius: 9px;
    background: #fff;
    box-shadow: 2px 3px 7px rgba(0,0,0,.25);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.related-card:hover,
.related-card:focus-visible {
    z-index: 2;
    transform: scale(1.025);
    box-shadow: 3px 5px 10px rgba(0,0,0,.28);
}

.related-card > img {
    width: calc(100% - 10px);
    margin: 5px 5px 0;
    aspect-ratio: 1000 / 564;
    object-fit: cover;
    border: 3px solid #fff;
    border-radius: 7px;
}

.related-card__body {
    display: flex;
    min-height: 178px;
    padding: 12px 12px 13px;
    flex-direction: column;
}

.related-card h3 {
    margin: 0;
    color: #111;
    font-size: 13px;
    line-height: 1.38;
}

.related-card time {
    margin-top: auto;
    color: #444;
    font-size: 16px;
    font-weight: 700;
}

.related-card::after {
    content: "";
    position: absolute;
    right: 8px;
    bottom: 9px;
    width: 16px;
    height: 16px;
    border: 1px solid #83ca00;
    border-radius: 50%;
    background: transparent;
}

.related-card::before {
    content: "";
    position: absolute;
    right: 15px;
    bottom: 15px;
    z-index: 1;
    width: 5px;
    height: 5px;
    border-top: 1px solid #83ca00;
    border-right: 1px solid #83ca00;
    transform: rotate(45deg);
}

.column-return {
    width: min(204px, 55vw);
    margin: 90px auto 0;
}

.column-return img { width: 100%; }

.column-footer {
    padding-top: 58px;
}

.column-message {
    width: min(900px, calc(100% - 40px));
    margin: 60px auto;
    padding: 24px;
    border: 1px solid #83ca00;
    background: #fff;
    text-align: center;
}

.column-message--detail {
    margin-top: 80px;
}

/* コラム一覧 */
.column-index-page,
.column-index-page .column-main {
    background: #f7f7f7;
}

.column-list-kv {
    width: 100%;
    overflow: hidden;
    background: transparent;
}

.column-list-kv__text {
    position: absolute;
    top: 7%;
    left: 50%;
    z-index: 1;
    width: min(760px, calc(100% - 48px));
    margin: 0;
    transform: translateX(-50%);
    color: #666;
    font-size: clamp(10px, 1vw, 14px);
    font-weight: 500;
}

.column-list-kv img {
    width: 100%;
    height: auto;
}

.column-list-section {
    padding: clamp(30px, 3vw, 60px) 24px;
    background: #f7f7f7;
}

.column-list-section__inner {
    width: min(760px, 100%);
    margin: 0 auto;
}

.column-list {
    display: grid;
    gap: 18px;
}

.column-list-card {
    display: grid;
    grid-template-columns: minmax(180px, 29%) 1fr;
    gap: 22px;
    min-height: 145px;
    padding: 14px 58px 14px 14px;
    border: 1px solid #d3d3d3;
    border-radius: 10px;
    background: #fff;
    box-shadow: 2px 2px 4px rgba(0,0,0,.2);
    color: #111;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.column-list-card:hover,
.column-list-card:focus-visible {
    z-index: 2;
    transform: scale(1.02);
    box-shadow: 3px 5px 9px rgba(0,0,0,.24);
}

.column-list-card__image {
    align-self: center;
    width: 100%;
    aspect-ratio: 1000 / 564;
    object-fit: cover;
    border-radius: 5px;
}

.column-list-card__body {
    display: flex;
    min-width: 0;
    flex-direction: column;
    justify-content: center;
}

.column-list-card h2 {
    margin: 5px 0 18px;
    font-size: clamp(16px, 1.7vw, 21px);
    line-height: 1.45;
}

.column-list-card time {
    margin-top: auto;
    font-size: 16px;
    font-weight: 700;
}

.column-list-card::after {
    content: "";
    position: absolute;
    right: 27px;
    bottom: 14px;
    width: 22px;
    height: 22px;
    border: 1px solid #83ca00;
    border-radius: 50%;
}

.column-list-card::before {
    content: "";
    position: absolute;
    right: 37px;
    bottom: 22px;
    z-index: 1;
    width: 6px;
    height: 6px;
    border-top: 1px solid #83ca00;
    border-right: 1px solid #83ca00;
    transform: rotate(45deg);
}

.column-index-page .column-return {
    margin-top: 70px;
    margin-bottom: 90px;
}

@media (max-width: 768px) {
    .column-kv {
        aspect-ratio: 1280 / 680;
        min-height: 300px;
    }

    .column-kv__heading { top: 3%; }
    .column-kv__title { font-size: clamp(15px, 3.2vw, 23px); }
    .column-kv__photo { bottom: 6%; }

    .column-article__inner > p {
        margin-right: 4px;
        margin-left: 4px;
        font-size: 15px;
        line-height: 1.5;
    }

    .column-article__subheading {
        margin-right: 10px;
        margin-left: 10px;
    }

    .column-author { align-items: flex-start; }
}

@media (max-width: 480px) {
    .column-kv {
        aspect-ratio: 1 / 1;
        min-height: 0;
    }

    .column-kv__heading { width: calc(100% - 40px); }
    .column-kv__lead { font-size: 11px; }
    .column-kv__title { font-size: clamp(15px, 4.8vw, 20px); }
    #column-date { font-size: 16px; }
    .column-kv__photo { bottom: 9%; width: 80vw; border-radius: 11px; }

    .column-article { padding-top: 44px; padding-bottom: 58px; }
    .column-article__inner,
    .related-columns { width: calc(100% - 32px); }
    .column-article__inner > h2 { margin-bottom: 32px; padding: 10px 13px; font-size: 17px; box-shadow: 4px 5px 0 #333; }
    .column-article__inner > p { font-size: 15px; line-height: 1.7; text-align: left; padding: 0 10px; }
    .column-article__image { width: 100%; margin: 38px auto 48px; }

    .column-author { gap: 12px; margin-top: 50px; padding: 16px 4px; }
    .column-author__portrait { flex-basis: 74px; width: 74px; height: 108px; }
    .column-author__body h2 { font-size: 15px; }
    .column-author__body p { font-size: 11px; }
    .column-author__name { font-size: 14px !important; }

    .related-columns { margin-top: 76px; }
    .related-columns > h2 { margin-bottom: 32px; font-size: 24px; }
    .related-columns__list { width: calc(100% - 0); flex-direction: column; gap: 22px; }
    .related-card { flex-basis: auto; width: 100%; }
    .related-card__body { min-height: 130px; }
    .column-return { margin-top: 62px; }
    .column-footer { padding-top: 48px; }

    .column-list-section { padding: 32px 16px 40px; }
    .column-list-kv__text { top: 3%; width: calc(100% - 32px); font-size: 11px; }
    .column-list { gap: 22px; }
    .column-list-card {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 10px 10px 16px 10px;
    }
    .column-list-card h2 { margin-bottom: 18px; font-size: 16px; }
    .column-list-card time { font-size: 14px; }
    .column-list-card::after { right: 10px; bottom: 16px; width: 20px; height: 20px; }
    .column-list-card::before { right: 18px; bottom: 23px; width: 6px; height: 6px; }
    .column-index-page .column-return { margin-top: 48px; margin-bottom: 60px; }

    .related-card h3 {
        font-size: 15px;
    }
}