:root {
    --brand:       #00507e;
    --brand-dark:  #003d61;
    --gold:        #c9a84c;
    --gold-pale:   rgba(201,168,76,0.15);
    --vermillion:  #c53d43;
    --bg:          #111111;
    --bg2:         #1a1a1a;
    --bg3:         #252525;
    --cream:       #f5f0e8;
    --muted:       #9a8e80;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    background: var(--bg);
    color: var(--cream);
    font-family: 'Shippori Mincho', 'Hiragino Mincho ProN', '游明朝', serif;
}
h1, h2, h3, h4, h5 {
    font-family: 'Zen Old Mincho', 'Hiragino Mincho ProN', serif;
}

/* ── 提案バッジ ── */
.proposal-badge {
    position: fixed;
    top: 12px;
    right: 16px;
    z-index: 9999;
    background: var(--gold);
    color: #111;
    font-family: 'Shippori Mincho', serif;
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    padding: 4px 12px;
    border-radius: 2px;
}

/* ── ブランドカラー トップバー ── */
.brand-topbar {
    height: 4px;
    background: var(--brand);
    position: relative;
    z-index: 101;
}

/* ── Navbar（動画上に透過表示） ── */
.site-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: linear-gradient(to bottom, rgba(0,0,0,0.7) 0%, transparent 100%);
    border-bottom: none;
}
.site-header .navbar-brand img {
    width: 44px;
    filter: invert(1) sepia(1) saturate(3) hue-rotate(5deg) brightness(0.9);
}
.site-header .brand-text { line-height: 1.2; }
.site-header .brand-sub {
    font-size: 0.68rem;
    letter-spacing: 0.25em;
    color: rgba(255,255,255,0.6);
}
.site-header .brand-name {
    font-family: 'Zen Old Mincho', serif;
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--gold);
}
.site-header .nav-link {
    color: rgba(255,255,255,0.75) !important;
    font-size: 0.88rem;
    letter-spacing: 0.12em;
    padding: 0.5rem 0.9rem !important;
    transition: color 0.25s;
    font-family: 'Shippori Mincho', serif;
}
.site-header .nav-link:hover { color: var(--gold) !important; }
.site-header .navbar-toggler { border-color: rgba(201,168,76,0.4); }
.site-header .navbar-toggler-icon { filter: invert(1); }

/* ── バーガーメニュー展開時（lg 未満）の視認性確保 ── */
@media (max-width: 991.98px) {
    .site-header .navbar-collapse {
        background: rgba(15, 15, 15, 0.92);
        backdrop-filter: blur(6px);
        -webkit-backdrop-filter: blur(6px);
        border: 1px solid rgba(201,168,76,0.25);
        border-radius: 4px;
        margin-top: 10px;
        padding: 10px 14px;
        box-shadow: 0 12px 32px rgba(0,0,0,0.45);
    }
    .site-header .navbar-nav .nav-link {
        color: rgba(255,255,255,0.92) !important;
        padding: 0.7rem 0.4rem !important;
        border-bottom: 1px solid rgba(201,168,76,0.12);
    }
    .site-header .navbar-nav .nav-item:last-child .nav-link {
        border-bottom: none;
    }
}

/* ── Video Hero ── */
.hero-video-section {
    position: relative;
    height: 100svh;
    min-height: 540px;
    max-height: 900px;
    overflow: hidden;
    background: #060d12;
    border-bottom: 2px solid var(--gold);
}

/* 動画要素（差し込み後に適用） */
.hero-video-el {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    z-index: 1;
}

/* 画像背景モディファイア（hero_image_url が設定された場合） */
.hero-video-el--image {
    display: block;
}

/* プレースホルダー（動画差し込み前） */
.hero-video-placeholder {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(270deg, #060406, #0a0e14, #150a00, #0a0808, #060406);
    background-size: 400% 400%;
    animation: video-flow 12s ease infinite;
}
.hero-video-placeholder::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(201,168,76,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(201,168,76,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}
@keyframes video-flow {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* デモ用ラベル */
.hero-video-label {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    z-index: 4;
    text-align: center;
    pointer-events: none;
}
.hero-video-label .play-icon {
    width: 64px; height: 64px;
    border: 1px solid rgba(201,168,76,0.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.8rem;
    font-size: 1.4rem;
    color: rgba(201,168,76,0.3);
}
.hero-video-label .label-text {
    font-size: 0.72rem;
    color: rgba(201,168,76,0.2);
    letter-spacing: 0.3em;
    font-family: 'Shippori Mincho', serif;
}

/* ブランドカラー縦ライン（ヒーロー左端） */
.hero-line-v {
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 5px;
    background: var(--brand);
    z-index: 5;
}
.hero-line-h {
    position: absolute;
    left: 5px; right: 0; bottom: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--brand) 0%, transparent 60%);
    z-index: 5;
}

/* 装飾用背景文字 */
.hero-deco {
    position: absolute;
    font-family: 'Zen Old Mincho', serif;
    font-size: 22rem;
    font-weight: 900;
    color: rgba(201,168,76,0.04);
    right: -3rem;
    top: 50%;
    transform: translateY(-50%);
    user-select: none;
    line-height: 1;
    pointer-events: none;
    z-index: 3;
}

/* グラデーションオーバーレイ */
.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(
        to bottom,
        rgba(0,0,0,0.25)  0%,
        rgba(0,0,0,0.08) 35%,
        rgba(5,3,0,0.55) 70%,
        rgba(10,6,0,0.85) 100%
    );
}

/* ヒーローコンテンツ（下部中央） */
.hero-content {
    position: absolute;
    bottom: 0;
    left: 0; right: 0;
    z-index: 4;
    padding-bottom: 4.5rem;
    text-align: center;
}
.hero-kicker {
    font-size: 0.78rem;
    letter-spacing: 0.5em;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 1.4rem;
    opacity: 0.85;
}
.hero-title {
    font-family: 'Zen Old Mincho', serif;
    font-size: clamp(2rem, 5vw, 3.4rem);
    font-weight: 900;
    color: #fff;
    letter-spacing: 0.18em;
    line-height: 1.35;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.hero-rule {
    width: 60px;
    height: 1px;
    background: var(--gold);
    margin: 1.4rem auto;
}
.hero-tagline {
    font-size: 1rem;
    color: var(--gold);
    letter-spacing: 0.35em;
    margin-bottom: 0.6rem;
}
.hero-desc {
    font-size: 0.88rem;
    color: var(--muted);
    letter-spacing: 0.1em;
    line-height: 2;
}

/* スクロールダウン */
.scroll-down {
    position: absolute;
    bottom: 1.8rem;
    right: 2.2rem;
    z-index: 4;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: rgba(201,168,76,0.4);
    font-size: 0.62rem;
    letter-spacing: 0.3em;
    font-family: 'Shippori Mincho', serif;
    text-decoration: none;
}
.scroll-down .arrow {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, rgba(201,168,76,0.55));
    animation: scroll-line 2s ease-in-out infinite;
}
@keyframes scroll-line {
    0%   { transform: scaleY(0); transform-origin: top;    opacity: 0; }
    50%  { transform: scaleY(1); transform-origin: top;    opacity: 1; }
    100% { transform: scaleY(1); transform-origin: bottom; opacity: 0; }
}

/* ── Section heading ── */
.sec-heading {
    font-family: 'Zen Old Mincho', serif;
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--cream);
    letter-spacing: 0.2em;
    padding-bottom: 0.7rem;
    border-bottom: 1px solid var(--gold);
    margin-bottom: 1.8rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.sec-heading::before {
    content: '';
    display: block;
    width: 4px;
    height: 1.65rem;
    background: var(--brand);
    flex-shrink: 0;
}

/* ── Banner ── */
.sec-banner {
    background: var(--bg2);
    border-top: 1px solid rgba(201,168,76,0.2);
    border-bottom: 1px solid rgba(201,168,76,0.2);
}
.sec-banner__grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
    padding: 0 1.5rem;
}
.sec-banner__item {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    min-height: 80px;
    transition: box-shadow 0.2s ease;
    flex: 0 1 415px;
    max-width: 415px;
}
.sec-banner__item:hover {
    box-shadow: 0 4px 14px rgba(0,0,0,0.08);
}
.sec-banner__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}
.sec-banner__logo {
    max-width: 100%;
    max-height: 64px;
    object-fit: contain;
}
@media (max-width: 576px) {
    .sec-banner__item {
        flex: 0 1 100%;
        max-width: 100%;
    }
}

/* ── News ── */
.sec-news {
    background: #001a2e;
    border-top: 4px solid var(--brand);
}
.sec-news--hidden {
    display: none;
}
.news-item {
    display: flex;
    align-items: baseline;
    gap: 1.4rem;
    padding: 0.85rem 0.85rem 0.85rem 1rem;
    border-left: 3px solid var(--brand);
    margin-bottom: 0.75rem;
    background: rgba(0,80,126,0.12);
    transition: border-left-color 0.25s, background 0.25s;
}
.news-item:hover {
    border-left-color: var(--gold);
    background: rgba(0,80,126,0.22);
}
.news-date {
    font-size: 0.82rem;
    color: var(--gold);
    flex-shrink: 0;
    letter-spacing: 0.06em;
}
.news-title a {
    font-size: 0.93rem;
    color: var(--cream);
    text-decoration: none;
    letter-spacing: 0.06em;
    transition: color 0.25s;
}
.news-title a:hover { color: var(--gold); }

/* ── News Detail Modal ── */
.news-modal__content {
    background-color: var(--bg2);
    color: var(--cream);
    border: 1px solid rgba(201, 168, 76, 0.2);
}
.news-modal__header {
    background-color: #001a2e;
    border-bottom: 1px solid rgba(201, 168, 76, 0.25);
    padding: 16px 20px;
}
.news-modal__title {
    font-family: 'Zen Old Mincho', 'Hiragino Mincho ProN', serif;
    font-size: 1.05rem;
    color: var(--cream);
    letter-spacing: 0.05em;
    line-height: 1.5;
}
.news-modal__body {
    padding: 24px 24px 28px;
    font-family: 'Shippori Mincho', 'Hiragino Mincho ProN', serif;
}
.news-modal__date {
    font-size: 0.82rem;
    color: var(--muted);
    margin-bottom: 16px;
    letter-spacing: 0.05em;
}
.news-modal__thumbnail {
    margin-bottom: 20px;
    text-align: center;
}
.news-modal__thumbnail--hidden {
    display: none;
}
.news-modal__thumbnail-img {
    max-width: 100%;
    max-height: 320px;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 4px;
}
.news-modal__content-body {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--cream);
}
.news-modal__content-body p {
    margin: 0;
    min-height: 1em;
}
.news-modal__content-body h1,
.news-modal__content-body h2,
.news-modal__content-body h3,
.news-modal__content-body h4 {
    font-family: 'Zen Old Mincho', 'Hiragino Mincho ProN', serif;
    color: var(--gold);
    margin-bottom: 0.6em;
}
.news-modal__content-body h1 { font-size: 1.2rem; }
.news-modal__content-body h2 { font-size: 1.1rem; }
.news-modal__content-body h3 { font-size: 1rem; }
.news-modal__content-body h4 { font-size: 0.95rem; }
.news-modal__content-body a {
    color: var(--gold);
    text-decoration: underline;
}
.news-modal__content-body a:hover { color: #e0bd5c; }
.news-modal__content-body ul,
.news-modal__content-body ol {
    padding-left: 1.5em;
    margin-bottom: 1em;
}
.news-modal__content-body li { margin-bottom: 0.3em; }
.news-modal__content-body blockquote {
    border-left: 3px solid var(--gold);
    padding-left: 1em;
    color: var(--muted);
    margin-bottom: 1em;
}
.news-modal__content-body img {
    max-width: 100%;
    height: auto;
}
.news-modal__content-body strong { color: var(--cream); }

/* ── Reports ── */
.sec-reports { background: var(--bg); }
.report-card {
    display: block;
    background: var(--bg2);
    border: 1px solid rgba(201,168,76,0.12);
    text-decoration: none;
    color: var(--cream);
    transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
    height: 100%;
}
.report-card:hover {
    border-color: var(--gold);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(201,168,76,0.15);
    color: var(--cream);
}
.report-thumb {
    height: 155px;
    background: linear-gradient(135deg, #0a1f30 0%, #00334f 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(201,168,76,0.25);
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    overflow: hidden;
}
.report-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.report-body { padding: 0.7rem 0.8rem; }
.report-date {
    font-size: 0.72rem;
    color: var(--gold);
    letter-spacing: 0.06em;
}
.report-title {
    font-family: 'Zen Old Mincho', serif;
    font-size: 0.88rem;
    margin-top: 0.2rem;
    line-height: 1.45;
}

.btn-viewall {
    background: transparent;
    border: 1.5px solid var(--brand);
    color: rgba(200,230,255,0.85);
    font-family: 'Shippori Mincho', serif;
    letter-spacing: 0.35em;
    padding: 0.7rem 3.5rem;
    font-size: 0.88rem;
    transition: all 0.3s;
    border-radius: 2px;
}
.btn-viewall:hover {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 4px 20px rgba(0,80,126,0.4);
}

/* ── Footer ── */
footer {
    background: var(--brand-dark);
    border-top: 3px solid var(--gold);
}
.footer-logo {
    width: 46px;
    filter: invert(1) sepia(1) saturate(3) hue-rotate(5deg) brightness(0.85);
}
.footer-org {
    font-family: 'Zen Old Mincho', serif;
    color: var(--gold);
    font-size: 0.95rem;
    letter-spacing: 0.2em;
}
.footer-addr {
    font-size: 0.78rem;
    color: var(--muted);
    letter-spacing: 0.08em;
    margin-top: 0.2rem;
}
.footer-nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    margin: 0 0.8rem;
    transition: color 0.25s;
}
.footer-nav a:hover { color: var(--gold); }
.footer-copy {
    font-size: 0.72rem;
    color: rgba(154,142,128,0.4);
    letter-spacing: 0.08em;
}
@media (min-width: 768px) {
    .hero-content { padding-bottom: 2rem; }
}

/* ── site-header--solid（サブページ用固定ヘッダー） ── */
.site-header--solid {
    position: relative;
    background: var(--bg2);
    border-bottom: 1px solid rgba(201,168,76,0.2);
}
.site-header--solid .nav-link {
    color: rgba(255,255,255,0.7) !important;
}
.site-header--solid .nav-link:hover { color: var(--gold) !important; }
.site-header--solid .nav-link.active { color: var(--gold) !important; }

/* ── 活動報告サムネイルプレースホルダー ── */
.report-thumb__placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: rgba(201,168,76,0.2);
    font-size: 2rem;
}

/* ── お知らせ 公開一覧ページ ── */
.news-page {
    background: var(--bg);
    min-height: 60vh;
}

/* ── 活動報告 公開一覧ページ ── */
.reports-page {
    background: var(--bg);
    min-height: 60vh;
}

.reports-filter {
    background: var(--bg2);
    border: 1px solid rgba(201,168,76,0.15);
    border-radius: 4px;
    padding: 18px 20px;
}

.reports-filter__toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: transparent;
    border: none;
    padding: 4px 2px;
    color: var(--cream);
    font-family: 'Shippori Mincho', serif;
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    cursor: pointer;
}

.reports-filter__toggle:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.reports-filter__toggle-label .bi {
    color: var(--gold);
    margin-right: 6px;
}

.reports-filter__toggle-caret {
    color: var(--gold);
    transition: transform 0.25s ease;
}

.reports-filter__toggle:not(.collapsed) .reports-filter__toggle-caret {
    transform: rotate(180deg);
}

.reports-filter__label {
    font-size: 0.82rem;
    color: var(--muted);
    letter-spacing: 0.06em;
    margin-bottom: 4px;
}

.reports-filter .form-control {
    background: var(--bg3);
    border-color: rgba(201,168,76,0.2);
    color: var(--cream);
}

.reports-filter .form-control:focus {
    background: var(--bg3);
    border-color: var(--gold);
    color: var(--cream);
    box-shadow: 0 0 0 0.2rem rgba(201,168,76,0.15);
}

.reports-filter .form-control::placeholder {
    color: rgba(154,142,128,0.6);
    opacity: 1;
}

.reports-pagination .pagination .page-link {
    background: var(--bg2);
    border-color: rgba(201,168,76,0.2);
    color: var(--muted);
}

.reports-pagination .pagination .page-link:hover {
    background: rgba(201,168,76,0.1);
    border-color: var(--gold);
    color: var(--gold);
}

.reports-pagination .pagination .page-item.active .page-link {
    background: var(--brand);
    border-color: var(--brand);
    color: #fff;
}

/* 無限スクロール 読み込みインジケータ & 終端メッセージ */
.reports-loader {
    margin-top: 8px;
}

.reports-loader__spinner {
    color: var(--gold);
    width: 1.75rem;
    height: 1.75rem;
}

.reports-loader__end {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--cream);
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    padding: 18px 0 4px;
}

.reports-loader__end::before,
.reports-loader__end::after {
    content: "";
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(201,168,76,0.55), transparent);
}

.reports-loader__end-text {
    color: var(--gold);
    font-weight: 600;
    white-space: nowrap;
}

.reports-filter__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 0.75rem;
    border-radius: 2px;
    font-family: 'Shippori Mincho', serif;
    font-size: 0.88rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: background 0.25s, color 0.25s;
    white-space: nowrap;
    text-decoration: none;
    height: 38px;
}

.reports-filter__actions {
    border-top: 1px solid rgba(201,168,76,0.12);
    padding-top: 14px;
    justify-content: flex-end;
}

.reports-filter__btn--search {
    background: var(--brand);
    border: 1.5px solid var(--brand);
    color: #fff;
    min-width: 140px;
}

.reports-filter__btn--search:hover {
    background: var(--brand-dark);
    border-color: var(--brand-dark);
    color: #fff;
}

.reports-filter__btn--reset {
    background: transparent;
    border: 1.5px solid rgba(154,142,128,0.4);
    color: var(--muted);
    flex-shrink: 0;
}

.reports-filter__btn--reset:hover {
    border-color: var(--muted);
    color: var(--cream);
}

.reports-filter__tags {
    border-top: 1px solid rgba(201,168,76,0.12);
    padding-top: 14px;
}

.reports-filter__tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 8px;
}

.reports-filter__tag {
    display: inline-flex;
    align-items: center;
    margin: 0;
    cursor: pointer;
}

.reports-filter__tag input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.reports-filter__tag-label {
    display: inline-block;
    padding: 4px 12px;
    border: 1px solid rgba(201,168,76,0.35);
    border-radius: 999px;
    background: var(--bg3);
    color: var(--muted);
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
    user-select: none;
}

.reports-filter__tag:hover .reports-filter__tag-label {
    border-color: var(--gold);
    color: var(--cream);
}

.reports-filter__tag input:checked + .reports-filter__tag-label {
    background: var(--brand);
    border-color: var(--brand);
    color: #fff;
}

.reports-filter__tag input:focus-visible + .reports-filter__tag-label {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.reports-pagination .pagination .page-item.disabled .page-link {
    background: var(--bg3);
    border-color: rgba(201,168,76,0.1);
    color: rgba(154,142,128,0.4);
}

/* ── 活動報告 詳細ページ ── */
.report-detail {
    background: var(--bg);
    min-height: 60vh;
}

.report-detail__article {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg2);
    border: 1px solid rgba(201,168,76,0.12);
    border-radius: 2px;
    padding: 40px 48px;
}

.report-detail__header {
    border-bottom: 1px solid rgba(201,168,76,0.18);
    padding-bottom: 24px;
    margin-bottom: 32px;
}

.report-detail__title {
    font-family: 'Zen Old Mincho', 'Shippori Mincho', serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--cream);
    line-height: 1.5;
    margin-bottom: 16px;
}

.report-detail__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.88rem;
    color: var(--muted);
    margin-bottom: 12px;
}

.report-detail__meta i {
    margin-right: 4px;
    color: var(--gold);
}

.report-detail__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.report-detail__tag {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(201,168,76,0.08);
    color: var(--gold);
    border: 1px solid rgba(201,168,76,0.22);
    border-radius: 12px;
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s;
}

a.report-detail__tag:hover,
a.report-detail__tag:focus {
    background: rgba(201,168,76,0.18);
    border-color: rgba(201,168,76,0.45);
    color: var(--gold);
    text-decoration: none;
}

.report-detail__body {
    font-size: 0.97rem;
    line-height: 1.5;
    color: var(--cream);
    margin-bottom: 36px;
}

.report-detail__body p { margin-bottom: 0; }

.report-detail__body img {
    max-width: 100%;
    height: auto;
    margin: 16px 0;
    border-radius: 2px;
    border: 1px solid rgba(201,168,76,0.1);
}

.report-detail__body h2,
.report-detail__body h3 {
    font-family: 'Zen Old Mincho', serif;
    color: var(--gold);
    margin-top: 1.8em;
    margin-bottom: 0.8em;
}

.report-detail__body ul,
.report-detail__body ol {
    padding-left: 1.5em;
    margin-bottom: 1.2em;
}

.report-detail__body a { color: var(--gold); }
.report-detail__body a:hover { color: #e0bd5c; }
.report-detail__body strong { color: #fff; }

.report-detail__gallery {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid rgba(201,168,76,0.18);
}

.report-detail__gallery-title {
    font-family: 'Zen Old Mincho', serif;
    font-size: 1.05rem;
    color: var(--gold);
    letter-spacing: 0.2em;
    margin-bottom: 20px;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(201,168,76,0.15);
}

.report-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
    margin-bottom: 24px;
}

.report-gallery--videos,
.report-gallery--embeds {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.report-gallery__item {
    position: relative;
    overflow: hidden;
    border-radius: 2px;
    background: var(--bg3);
    aspect-ratio: 4 / 3;
    border: 1px solid rgba(201,168,76,0.08);
    padding: 0;
    cursor: pointer;
    display: block;
    width: 100%;
    transition: border-color 0.25s;
}

.report-gallery__photo:hover {
    border-color: rgba(201,168,76,0.4);
}

.report-gallery__photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.report-gallery__photo:hover img { transform: scale(1.04); }

.report-gallery__video { cursor: default; }

.report-gallery__video video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
}

.report-gallery__embed {
    aspect-ratio: 16 / 9;
    cursor: default;
}

.report-gallery__embed-frame {
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: 2px;
    overflow: hidden;
}

.report-gallery__embed-frame iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

.report-gallery__embed-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--gold);
    text-decoration: none;
    font-size: 0.88rem;
    padding: 12px;
}

.report-gallery__embed-link:hover {
    text-decoration: underline;
    color: #e0bd5c;
}

.report-detail__footer {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid rgba(201,168,76,0.18);
    text-align: center;
    background: transparent;
    border-bottom: none;
}


/* Lightbox */
.lightbox-modal .modal-dialog { max-width: 90vw; }

.lightbox-modal__content {
    background: transparent;
    border: none;
    position: relative;
}

.lightbox-modal__close {
    position: absolute;
    top: -44px;
    right: 0;
    z-index: 2;
    filter: invert(1);
}

.lightbox-modal__image {
    max-width: 100%;
    max-height: 85vh;
    display: block;
    margin: 0 auto;
    border: 1px solid rgba(201,168,76,0.15);
}

.lightbox-modal__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: rgba(0,0,0,0.55);
    color: #fff;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.15s ease;
}

.lightbox-modal__nav:hover,
.lightbox-modal__nav:focus {
    background: rgba(0,0,0,0.8);
    outline: none;
}

.lightbox-modal__nav--prev { left: -60px; }
.lightbox-modal__nav--next { right: -60px; }

@media (max-width: 992px) {
    .lightbox-modal__nav--prev { left: 8px; }
    .lightbox-modal__nav--next { right: 8px; }
}

@media (max-width: 768px) {
    .report-detail__article { padding: 24px 18px; }
    .report-detail__title { font-size: 1.4rem; }
    .reports-filter { padding: 12px 14px; }
    .reports-filter__body.show,
    .reports-filter__body.collapsing { margin-top: 12px; padding-top: 12px; border-top: 1px solid rgba(201,168,76,0.12); }
    .report-gallery--videos,
    .report-gallery--embeds { grid-template-columns: 1fr; }
}

/* ================================================================
   Contact page
   公開サイトのお問い合わせフォーム
   ================================================================ */

.contact-page {
    background-color: #fafaf7;
}

.contact-page .sec-heading {
    color: #111;
}

.contact-page .sec-heading::before {
    background-color: #111;
}

.contact-section {
    max-width: 720px;
    margin: 0 auto;
}

.contact-guidance {
    color: #333;
    font-size: 0.95rem;
    line-height: 1.9;
    margin-bottom: 2rem;
}

.contact-alert {
    display: flex;
    align-items: flex-start;
    padding: 14px 18px;
    border-radius: 6px;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.contact-alert--error {
    background-color: #fdecea;
    color: #a62423;
    border: 1px solid #f5c2bf;
}

.contact-form {
    background-color: #ffffff;
    padding: 32px 28px;
    border: 1px solid rgba(201, 168, 76, 0.2);
    border-radius: 6px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.contact-form__row {
    margin-bottom: 1.5rem;
}

.contact-form__label {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: #222;
}

.contact-form__required {
    display: inline-block;
    margin-left: 0.4rem;
    padding: 2px 7px;
    background-color: #c9a84c;
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 3px;
    vertical-align: middle;
}

.contact-form__input,
.contact-form__textarea {
    border: 1px solid #ccc;
    padding: 10px 12px;
    font-size: 0.95rem;
    border-radius: 4px;
    width: 100%;
}

.contact-form__input:focus,
.contact-form__textarea:focus {
    outline: none;
    border-color: #c9a84c;
    box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15);
}

.contact-form__input.is-invalid,
.contact-form__textarea.is-invalid {
    border-color: #dc3545;
}

.contact-form__textarea {
    resize: vertical;
    min-height: 160px;
    line-height: 1.7;
}

.contact-form__help {
    margin-top: 0.35rem;
    margin-bottom: 0;
    font-size: 0.8rem;
    color: #777;
}

.contact-form__error {
    margin-top: 0.35rem;
    margin-bottom: 0;
    font-size: 0.85rem;
    color: #dc3545;
    min-height: 1.2em;
}

.contact-form__privacy {
    font-size: 0.78rem;
    color: #666;
    margin-top: 1rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.contact-form__privacy a {
    color: #c9a84c;
    text-decoration: underline;
}

.contact-form__actions {
    margin-top: 1.5rem;
}

.contact-form__submit {
    background-color: #1a1a1a;
    color: #fff;
    padding: 12px 48px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 4px;
    transition: background-color 0.2s ease, transform 0.1s ease;
    min-width: 200px;
}

.contact-form__submit:hover:not(:disabled) {
    background-color: #c9a84c;
    color: #fff;
}

.contact-form__submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 確認モーダル */
.contact-confirm-modal .modal-header {
    border-bottom: 1px solid #eee;
    padding: 16px 20px;
}

.contact-confirm-modal .modal-title {
    font-weight: 600;
    font-size: 1.05rem;
    color: #111;
}

.contact-confirm-modal__lead {
    font-size: 0.88rem;
    color: #555;
    margin-bottom: 1rem;
}

.contact-confirm-modal .modal-footer {
    border-top: 1px solid #eee;
    padding: 14px 20px;
    gap: 8px;
}

/* 送信完了セクション */
.contact-section--complete {
    text-align: center;
    padding: 2rem 1rem;
}

.contact-complete {
    background-color: #ffffff;
    border: 1px solid rgba(201, 168, 76, 0.2);
    border-radius: 6px;
    padding: 48px 28px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.contact-complete__icon {
    font-size: 3rem;
    color: #28a745;
    display: block;
    margin-bottom: 1rem;
}

.contact-complete__heading {
    font-family: 'Zen Old Mincho', serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: #222;
}

.contact-complete__text {
    font-size: 0.95rem;
    line-height: 1.9;
    color: #333;
    margin-bottom: 1rem;
}

.contact-complete__notice {
    background-color: #fff8e1;
    border: 1px solid #f0d97b;
    border-radius: 4px;
    padding: 14px 18px;
    font-size: 0.85rem;
    color: #6b5a00;
    line-height: 1.7;
    text-align: left;
    margin: 1.5rem 0;
}

.contact-complete__actions {
    margin-top: 1.5rem;
}

@media (max-width: 640px) {
    .contact-form {
        padding: 22px 18px;
    }

    .contact-form__submit {
        width: 100%;
        min-width: 0;
    }

    .contact-complete {
        padding: 32px 18px;
    }

    .contact-complete__heading {
        font-size: 1.25rem;
    }
}