:root {
    /* ▼ テーマカラー：ここだけ変えればサイト全体の色が変わる / （青→赤などにする時は、この accent系 / *-rgb を差し替え） */
    --accent:        #3399cc;   /* 主アクセント＝公式ブルー */
    --accent-deep:   #1f6f9c;   /* 濃い差し色（公式ブルーの暗）＝水彩面の下地にも使用 */
    --accent-bright: #66c4ec;   /* 明るい差し色（公式ブルーの明） */
    --accent-pale:   #b3d9ea;   /* 淡い面 */
    --accent-mist:   #e3f1f8;   /* 最も淡い面 */
    --accent-rgb:        51, 153, 204;    /* =#3399cc 公式ブルー（rgba合成用） */
    --accent-deep-rgb:   31, 111, 156;    /* =accent-deep */

    /* 中立色・サーフェス・フォント等のトークン（↑のテーマ色を参照） */
    --color-primary: #1f2a3d;          /* ink（見出し・中立の濃色） */
    --color-primary-light: #2a4a6b;
    --color-secondary: var(--accent-deep);
    --color-secondary-light: var(--accent);
    --color-secondary-warm: #c7975c;   /* 暖色の差し＝公式ゴールド */
    --gold-ink: #a87b45;               /* 白地の上で文字として使う濃い公式金（#c7975cは白地だと薄い） */

    /* トップAboutバンドの藍（明→中→暗）。あえてテーマ色(accent系)に連動させない固定色
       ＝黄系テーマの年でも白文字が破綻しないため。変えたい時はこの3つだけ編集 */
    --band-indigo-1: #24476b;
    --band-indigo-2: #16283d;
    --band-indigo-3: #101f30;

    --color-surface: rgba(255, 255, 255, 0.66);      /* ガラスカード */
    --color-surface-low: rgba(255, 255, 255, 0.42);
    --color-surface-high: rgba(255, 255, 255, 0.86);
    --color-background: transparent;                 /* 背景は水彩を透かす */

    --color-on-surface: #1f2a3d;
    --color-on-surface-muted: #4d5a72;

    /* 追加トークン */
    --bg: #fafcfe;
    --ink: #1f2a3d; --ink-2: #4d5a72; --ink-3: #5f7490; --ink-faint: #c2cbd8;
    --warm: #f0c89a; --warm-deep: #e8a25a; --warm-bright: #f2b46e; --warm-ink: #995f14;
    --line: rgba(40, 70, 110, 0.10); --line-soft: rgba(40, 70, 110, 0.05);
    --glass: rgba(255, 255, 255, 0.55); --glass-strong: rgba(255, 255, 255, 0.78); --glass-bd: rgba(255, 255, 255, 0.7);
    --shadow-air: 0 30px 80px -40px rgba(60, 100, 150, 0.28);
    --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.9) inset, 0 24px 60px -30px rgba(60, 100, 150, 0.22);
    --shadow-soft: 0 12px 40px -20px rgba(60, 100, 150, 0.18);
    --ease: cubic-bezier(0.22, 1, 0.36, 1);

    --font-rounded: "Shippori Mincho", "Noto Serif JP", serif;
    --font-sans: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
    --font-display: "Space Grotesk", "Zen Kaku Gothic New", sans-serif;
    --font-serif-jp: "Shippori Mincho", "Noto Serif JP", "Hiragino Mincho ProN", serif;

    --content-max-width: 1200px;
}

/* Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { scroll-padding-top: 6rem; }
/* スムーススクロールは、動きを減らす設定を使っていない環境でのみ有効にする */
@media (prefers-reduced-motion: no-preference) {
    html { scroll-behavior: smooth; }
}
html, body { overflow-x: hidden; }
body {
    font-family: var(--font-sans);
    color: var(--color-on-surface);
    background: #ffffff;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    line-height: 1.7;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }


.eyebrow {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-secondary);
}
.eyebrow.on-dark { color: var(--color-secondary-warm); }

.section-display {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-primary);
    line-height: 0.9;
    font-size: 1.75rem;
}
@media (min-width: 960px) { .section-display { font-size: 2.75rem; } }

.section-display.size-md { font-size: 1.5rem; }
@media (min-width: 960px) { .section-display.size-md { font-size: 2.25rem; } }
.section-display.size-lg { font-size: 2.25rem; }
@media (min-width: 960px) { .section-display.size-lg { font-size: 3.5rem; } }

/* 節内の下位見出し（例: map.html の「会場エリア」）。同節の h2(.section-display) より一段小さく */
.section-subhead {
    font-family: var(--font-rounded);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-primary);
}

.section-lead {
    color: var(--color-on-surface-muted);
    margin-top: 12px;
    max-width: 36rem;
    line-height: 1.7;
}

.muted { color: var(--color-on-surface-muted); }
.center { text-align: center; }
.bold { font-weight: 700; }

/* Layout helpers */
.container {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}
@media (min-width: 960px) { .container { padding: 0 40px; } }

.container-narrow {
    max-width: 768px;
    margin: 0 auto;
    padding: 0 24px;
}
@media (min-width: 960px) { .container-narrow { padding: 0 40px; } }

.section {
    padding: 80px 0;
    position: relative;
}
@media (min-width: 960px) { .section { padding: 112px 0; } }
.section.size-sm { padding: 48px 0 48px; }
@media (min-width: 960px) { .section.size-sm { padding: 64px 0 80px; } }
.section.size-md { padding: 64px 0; }
@media (min-width: 960px) { .section.size-md { padding: 96px 0; } }

.section.bg-surface { background: var(--color-surface); }
.section.bg-surface-low { background: var(--color-surface-low); }

.section-head {
    margin-bottom: 48px;
}
@media (min-width: 768px) {
    .section-head.head-row {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 24px;
    }
}


.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: 1fr; }
@media (min-width: 768px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.hidden { display: none !important; }
.hidden-sp { }
.hidden-pc { }
@media (max-width: 767px) { .hidden-sp { display: none !important; } }
@media (min-width: 960px) { .hidden-pc { display: none !important; } }

/* Buttons: 矩形CTA(.btn-primary/.btn-ghost)は .btn-outline-light と同じ明朝・字間・角丸2pxの語彙を共有する */
.btn-primary,
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif-jp);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.12em;
    padding: 14px 28px;
    border-radius: 2px;
    border: none;
    cursor: pointer;
    transition: filter 0.2s ease, transform 0.15s ease, background 0.2s ease;
    text-decoration: none;
    white-space: nowrap;
}
.btn-primary {
    background: var(--accent-deep);
    color: #fff;
}
.btn-primary:hover { filter: brightness(1.07); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary.full { width: 100%; justify-content: center; }
.btn-ghost {
    background: transparent;
    color: var(--color-primary);
    padding: 13px 27px;
    box-shadow: inset 0 0 0 1px rgba(0, 30, 65, 0.15);
}
.btn-ghost:hover { background: rgba(0, 30, 65, 0.04); }
.btn-ghost:active { transform: scale(0.98); }

.btn-text {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-primary);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    position: relative;
    padding-bottom: 4px;
}
.btn-text::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    height: 2px;
    width: 24px;
    background: var(--color-secondary);
    transition: width 0.3s ease;
}
.btn-text:hover::after { width: 100%; }
.btn-text.on-dark { color: #fff; }
.btn-text.on-dark::after { background: var(--color-secondary-warm); }


.tag {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: var(--color-secondary);
    color: #fff;
    padding: 4px 11px;
    border-radius: 9999px;
}
.tag .material-symbols-outlined { font-size: 12px; }
.tag.size-md { font-size: 11px; padding: 5px 13px; }
.tag.size-md .material-symbols-outlined { font-size: 14px; }

/* Photo Placeholder (画像欠損時のフォールバック) */
.photo-placeholder {
    position: relative;
    background: linear-gradient(135deg, #1f2a3d 0%, var(--accent-deep) 55%, var(--accent) 100%);
    overflow: hidden;
}
.photo-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.18), transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255,255,255,0.10), transparent 50%);
    pointer-events: none;
}
.photo-placeholder::after {
    content: '潮風祭';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-rounded);
    font-weight: 900;
    color: rgba(255,255,255,0.18);
    font-size: 1.6rem;
    letter-spacing: 0.3em;
    pointer-events: none;
}
.photo-placeholder > img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 2;
}
.photo-placeholder.tone-dark { background: linear-gradient(135deg, #001e41 0%, #002d5e 100%); }
.photo-placeholder.aspect-16-9 { aspect-ratio: 16/9; }

/* Cards */
.card {
    background: var(--color-surface);
    border-radius: 4px;
    overflow: hidden;
    transition: background 0.25s ease, transform 0.3s ease;
    display: flex;
    flex-direction: column;
}
.card:hover { background: var(--color-surface-high); }

.card-body {
    padding: 20px;
}
.card-body.size-md { padding: 24px; }
.card-body.size-lg { padding: 28px; }
.card-body.size-xl { padding: 32px; }
@media (min-width: 960px) {
    .card-body.size-lg { padding: 32px; }
    .card-body.size-xl { padding: 40px; }
}

.card-title {
    font-family: var(--font-rounded);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--color-primary);
    line-height: 1.35;
    margin-bottom: 8px;
}
.card-title.size-lg { font-size: 1.25rem; }

.card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--color-on-surface-muted);
    margin-bottom: 8px;
}
.card-meta .meta-item { display: inline-flex; align-items: center; gap: 4px; }
.card-meta .material-symbols-outlined { font-size: 14px; }

.card-text {
    font-size: 0.875rem;
    color: var(--color-on-surface-muted);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.75s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.75s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.fade-up.in {
    opacity: 1;
    transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
    .fade-up { opacity: 1; transform: none; transition: none; }
}

/* Material Symbols */
.material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-weight: normal;
    font-style: normal;
    font-size: 24px;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
}
.icon-sm { font-size: 14px !important; }
.icon-md { font-size: 18px !important; }

/* Header / Navigation */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: var(--color-primary);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.12);
    transition: background 0.3s ease, backdrop-filter 0.3s ease, box-shadow 0.3s ease;
}
.site-header * {
    transition: color 0.25s ease;
}
/* スクロール = 紺ぼかし (デフォルト) */
.site-header.scrolled {
    background: rgba(0, 30, 65, 0.92);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.18);
}
/* 暗背景セクション上 = 透明 */
.site-header.over-dark {
    background: transparent;
    box-shadow: none;
}
/* 暗背景上 + スクロール = 白ぼかし */
.site-header.scrolled.over-dark {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    box-shadow: 0 1px 0 rgba(0, 30, 65, 0.05);
}
.site-header__inner {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
@media (min-width: 960px) { .site-header__inner { padding: 16px 40px; } }

.brand {
    display: flex;
    align-items: baseline;
    gap: 8px;
    transition: transform 0.15s ease;
}
.brand:active { transform: scale(0.96); }
.brand-year {
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-secondary-warm);
    letter-spacing: 0.3em;
}
.site-header.scrolled.over-dark .brand-year { color: var(--color-secondary); }

.desktop-nav {
    display: none;
    align-items: center;
    gap: 24px;
}
@media (min-width: 960px) { .desktop-nav { display: flex; gap: 40px; } }
.nav-link {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 700;
    color: #fff;
    position: relative;
    padding: 4px 0;
    transition: color 0.2s ease;
    white-space: nowrap;
}
.nav-link:hover { color: var(--color-secondary-warm); }
.nav-link.active { color: var(--color-secondary-warm); }
.nav-link.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -4px;
    height: 2px;
    background: var(--color-secondary-warm);
}
.site-header.scrolled.over-dark .nav-link { color: var(--color-primary); }
.site-header.scrolled.over-dark .nav-link:hover { color: var(--color-secondary); }
.site-header.scrolled.over-dark .nav-link.active { color: var(--color-secondary); }
.site-header.scrolled.over-dark .nav-link.active::after { background: var(--color-secondary); }

.hamburger-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: transparent;
    color: #fff;
    border: none;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.15s ease;
}
.hamburger-btn:active { transform: scale(0.94); }
.site-header.scrolled.over-dark .hamburger-btn { color: var(--color-primary); }
.hamburger-icon {
    position: relative;
    display: inline-block;
    width: 22px;
    height: 16px;
}
.hamburger-icon span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: top 0.25s ease, transform 0.25s ease, opacity 0.2s ease;
}
.hamburger-icon span:nth-child(1) { top: 0; }
.hamburger-icon span:nth-child(2) { top: 7px; }
.hamburger-icon span:nth-child(3) { top: 14px; }
.hamburger-btn[aria-expanded="true"] .hamburger-icon span:nth-child(1) {
    top: 7px; transform: rotate(45deg);
}
.hamburger-btn[aria-expanded="true"] .hamburger-icon span:nth-child(2) { opacity: 0; }
.hamburger-btn[aria-expanded="true"] .hamburger-icon span:nth-child(3) {
    top: 7px; transform: rotate(-45deg);
}
@media (min-width: 960px) { .hamburger-btn { display: none; } }

.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: var(--color-surface);
    transform: translateX(100%);
    transition: transform 0.3s ease, visibility 0s linear 0.3s;
    display: flex;
    flex-direction: column;
    visibility: hidden;
    padding-top: 72px;
}
.mobile-menu--open {
    transform: translateX(0);
    visibility: visible;
    transition: transform 0.3s ease, visibility 0s linear 0s;
}
.mobile-menu__nav {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    padding: 16px 24px 32px;
    gap: 4px;
}
.mobile-menu__nav a {
    padding: 16px 12px;
    font-family: var(--font-rounded);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-on-surface);
    border-bottom: 1px solid rgba(0, 30, 65, 0.06);
    transition: color 0.2s ease, padding-left 0.2s ease;
}
.mobile-menu__nav a:hover {
    color: var(--color-secondary);
    padding-left: 20px;
}
.mobile-menu__nav a.active { color: var(--color-secondary); }
@media (min-width: 960px) { .mobile-menu { display: none; } }

body.no-scroll { overflow: hidden; }
/* メニューを開いた時、暗背景上 (透明ヘッダー) の場合のみ × を紺色に (モバイルメニュー白背景に対して見やすく)。紺ヘッダー時は白の × そのまま */
body.no-scroll .site-header.over-dark .hamburger-btn {
    color: var(--color-primary);
}
body.no-scroll .site-header.over-dark .brand-year { color: var(--color-secondary); }
body.no-scroll .site-header { z-index: 110; }

/* Back to top */
.back-to-top {
    position: fixed;
    right: 16px;
    bottom: calc(96px + env(safe-area-inset-bottom));
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: var(--color-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 49;
    box-shadow: 0 4px 16px rgba(0, 30, 65, 0.25);
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    transition: opacity 0.25s ease, transform 0.25s ease, background 0.2s ease;
}
.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}
.back-to-top:hover { background: var(--color-secondary); }
.back-to-top .material-symbols-outlined { font-size: 24px; }
@media (min-width: 960px) {
    .back-to-top {
        right: 24px;
        bottom: 24px;
        width: 52px;
        height: 52px;
    }
    .back-to-top .material-symbols-outlined { font-size: 26px; }
}

/* TOP page hero */
.top-hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--color-primary);
    color: #fff;
}
.top-hero__container {
    position: relative;
    z-index: 1;
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 128px 24px 128px;
    width: 100%;
}
@media (min-width: 960px) { .top-hero__container { padding: 160px 40px 128px; } }
.top-hero__grid {
    display: grid;
    gap: 48px;
    align-items: center;
}
@media (min-width: 960px) {
    .top-hero__grid { grid-template-columns: 2fr 1fr; gap: 48px; }
}
.top-hero__title {
    font-family: var(--font-rounded);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 0.86;
    font-size: 22vw;
    margin: 24px 0 32px;
}
@media (min-width: 640px) { .top-hero__title { font-size: 18vw; } }
@media (min-width: 960px) { .top-hero__title { font-size: 11rem; } }
@media (min-width: 1280px) { .top-hero__title { font-size: 13.5rem; } }
.top-hero__date-row {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 12px;
    font-family: var(--font-display);
    font-size: 1.875rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}
@media (min-width: 960px) { .top-hero__date-row { font-size: 2.25rem; } }
.top-hero__date-row .sep { color: rgba(255,255,255,0.4); }
.top-hero__date-suffix {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
}
.top-hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 48px;
}
.top-hero__side {
    display: flex;
    flex-direction: column;
    gap: 32px;
}
@media (min-width: 960px) { .top-hero__side { padding-left: 32px; } }
.top-hero__side-block { padding-top: 24px; }
.top-hero__side-block + .top-hero__side-block { border-top: 1px solid rgba(255,255,255,0.1); }
.top-hero__side-block .label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
    margin-bottom: 8px;
    display: block;
}
.top-hero__side-block .edition-num {
    font-family: var(--font-display);
    font-size: 3.75rem;
    font-weight: 700;
    line-height: 1;
}
.top-hero__side-block .edition-th { color: var(--color-secondary-light); }
.top-hero__side-block .venue-main { font-weight: 700; }
.top-hero__side-block .theme-text {
    font-family: var(--font-rounded);
    font-size: 1.5rem;
    font-weight: 600;
}
.top-hero__side-block .hours-text {
    font-family: var(--font-serif-jp);
    font-size: 1.05rem;
    font-weight: 600;
}

/* Page hero (other pages) */
.page-hero {
    position: relative;
    padding: 16px 0 32px;
    background: var(--color-surface-low);
    overflow: hidden;
}
@media (min-width: 960px) { .page-hero { padding: 24px 0 48px; } }
.page-hero__inner {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}
@media (min-width: 960px) { .page-hero__inner { padding: 0 40px; } }
.page-hero__breadcrumb {
    font-size: 0.75rem;
    color: var(--color-on-surface-muted);
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}
.page-hero__breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
}
.page-hero__breadcrumb a:hover { text-decoration: underline; }
.page-hero__breadcrumb .sep {
    margin: 0 6px;
    color: var(--color-on-surface-muted);
    opacity: 0.6;
}
.page-hero__title {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.15;
    color: var(--color-primary);
    font-size: 2.25rem;
    margin: 4px 0 12px;
}
@media (min-width: 960px) { .page-hero__title { font-size: 3.25rem; } }
.page-hero__lead {
    font-size: 1rem;
    color: var(--color-on-surface-muted);
    max-width: 32rem;
    line-height: 1.8;
}
@media (min-width: 960px) { .page-hero__lead { font-size: 1.05rem; } }

/* News list */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 480px;
    overflow-y: auto;
    padding-right: 8px;
}
.news-list::-webkit-scrollbar { width: 6px; }
.news-list::-webkit-scrollbar-track { background: transparent; }
.news-list::-webkit-scrollbar-thumb {
    background: rgba(0, 30, 65, 0.15);
    border-radius: 3px;
}
.news-list::-webkit-scrollbar-thumb:hover { background: rgba(0, 30, 65, 0.3); }
.news-list { scrollbar-width: thin; scrollbar-color: rgba(0, 30, 65, 0.15) transparent; }

.news-item {
    padding: 20px;
    border-radius: 4px;
    background: var(--color-surface);
}
@media (min-width: 960px) { .news-item { padding: 24px; } }
.news-item__date {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--color-on-surface-muted);
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}
.news-item__title {
    font-family: var(--font-rounded);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.4;
    margin-bottom: 8px;
}
.news-item__body {
    font-size: 0.875rem;
    color: var(--color-on-surface-muted);
    line-height: 1.7;
}
.news-item__buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 12px;
}
.news-item__buttons a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-secondary);
    text-decoration: none;
}
.news-item__buttons a:hover { text-decoration: underline; }
.news-item__buttons a.pdf-link { color: var(--color-primary); }
.news-item__buttons a .material-symbols-outlined { font-size: 14px; }
/* Skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--color-surface-low) 0%, var(--color-surface-high) 50%, var(--color-surface-low) 100%);
    background-size: 200% 100%;
    animation: shimmer 1.4s linear infinite;
    border-radius: 4px;
}
.skeleton.size-sm { height: 80px; }
.skeleton.size-md { height: 120px; }
.skeleton.size-lg { height: 220px; }
.skeleton.size-xl { height: 320px; }

@keyframes shimmer {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

/* App loader */
.app-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
        radial-gradient(ellipse at 50% 120%, #0a3a72 0%, #001e41 55%, #00132a 100%);
    color: #fff;
    transition: opacity 0.6s ease, visibility 0s linear 0.6s;
}
.app-loader.is-hidden { opacity: 0; visibility: hidden; }
/* JSが失敗してもローダーが画面を塞ぎ続けない保険（5秒で自動退場。通常はJSが先に is-hidden を付ける） */
@keyframes app-loader-failsafe { to { opacity: 0; visibility: hidden; } }
.app-loader { animation: app-loader-failsafe 0.6s ease 5s forwards; }
.app-loader__glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.55;
    pointer-events: none;
    animation: app-loader-glow 6s ease-in-out infinite alternate;
}
.app-loader__glow--warm {
    width: 360px;
    height: 360px;
    left: -80px;
    top: -120px;
    background: radial-gradient(circle, var(--color-secondary, #ffb84d) 0%, transparent 70%);
}
.app-loader__glow--cool {
    width: 420px;
    height: 420px;
    right: -120px;
    bottom: -140px;
    background: radial-gradient(circle, #4aa6ff 0%, transparent 70%);
    animation-delay: -2s;
}
@keyframes app-loader-glow {
    0% { transform: translate(0, 0) scale(1); opacity: 0.45; }
    100% { transform: translate(20px, -20px) scale(1.1); opacity: 0.65; }
}
.app-loader__inner {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
    z-index: 1;
}
.app-loader__eyebrow {
    font-family: var(--font-rounded);
    font-weight: 600;
    font-size: 0.72rem;
    letter-spacing: 0.42em;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    opacity: 0;
    animation: app-loader-fade-up 0.7s ease-out 0.05s forwards;
}
.app-loader__brand {
    font-family: var(--font-rounded);
    font-weight: 900;
    font-size: 3rem;
    letter-spacing: 0.12em;
    display: inline-flex;
    gap: 0.08em;
}
.app-loader__brand span {
    display: inline-block;
    opacity: 0;
    transform: translateY(16px);
    animation: app-loader-fade-up 0.7s cubic-bezier(.2,.7,.2,1) forwards;
    animation-delay: calc(0.18s + var(--i, 0) * 0.12s);
}
.app-loader__wave {
    width: 200px;
    height: 24px;
    opacity: 0;
    animation: app-loader-fade-up 0.7s ease-out 0.6s forwards;
}
.app-loader__wave svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}
.app-loader__wave svg path {
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
}
.app-loader__wave svg path:nth-child(1) {
    stroke: rgba(255, 255, 255, 0.25);
    stroke-dasharray: 4 8;
    animation: app-loader-wave-flow 2.4s linear infinite;
}
.app-loader__wave svg path:nth-child(2) {
    stroke: var(--color-secondary-light, #ffd58a);
    stroke-dasharray: 30 220;
    animation: app-loader-wave-stream 1.8s linear infinite;
}
@keyframes app-loader-wave-flow {
    to { stroke-dashoffset: -48; }
}
@keyframes app-loader-wave-stream {
    from { stroke-dashoffset: 250; }
    to { stroke-dashoffset: 0; }
}
@keyframes app-loader-fade-up {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 600px) {
    .app-loader__brand { font-size: 2.4rem; }
    .app-loader__wave { width: 160px; }
}
@media (prefers-reduced-motion: reduce) {
    .app-loader__brand span,
    .app-loader__eyebrow,
    .app-loader__wave { animation: none; opacity: 1; transform: none; }
    .app-loader__wave svg path { animation: none; }
    .app-loader__glow { animation: none; }
}

/* Modal & Lightbox */
.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 90;
    background: rgba(0, 14, 28, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    /* 開閉はフェード＋カードの浮き上がりで遷移（JSは.openの付け外しのみ・従来と互換） */
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.28s ease, visibility 0.28s ease;
}
.modal-backdrop.open { opacity: 1; visibility: visible; pointer-events: auto; }
.modal-backdrop .modal-card {
    transform: translateY(14px) scale(0.985);
    transition: transform 0.34s cubic-bezier(0.22, 1, 0.36, 1);
}
.modal-backdrop.open .modal-card { transform: none; }
@media (prefers-reduced-motion: reduce) {
    .modal-backdrop, .modal-backdrop .modal-card { transition: none; }
}
.modal-card {
    background: var(--color-surface);
    border-radius: 8px;
    max-width: 560px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    padding: 24px;
}
.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-surface-low);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: background 0.2s ease;
    color: var(--color-primary);
}
.modal-close:hover { background: var(--color-surface-high); }

.lightbox-overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0, 14, 28, 0.94);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.lightbox-overlay.open { display: flex; }
.lightbox-overlay img {
    max-width: 100%;
    max-height: 78vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 32px 80px rgba(0, 0, 0, 0.4);
}
.lightbox-overlay .lightbox-poster-fallback {
    width: min(540px, 90vw);
    aspect-ratio: 3/4;
    border-radius: 4px;
}
.lightbox-close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    cursor: pointer;
    border: none;
    transition: background 0.2s ease;
}
.lightbox-close:hover { background: rgba(255, 255, 255, 0.22); }
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    cursor: pointer;
    border: none;
    transition: background 0.2s ease;
}
.lightbox-nav:hover { background: rgba(255, 255, 255, 0.22); }
.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }
.lightbox-caption {
    position: absolute;
    bottom: 32px;
    left: 0;
    right: 0;
    text-align: center;
    color: #fff;
    font-family: var(--font-display);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    font-size: 0.8rem;
}
.lightbox-caption strong {
    display: block;
    font-size: 1.4rem;
    letter-spacing: 0.06em;
    font-family: var(--font-rounded);
    text-transform: none;
    margin-bottom: 4px;
}


/* Footer */
.site-footer {
    background: var(--color-primary);
    color: #fff;
    position: relative;
    padding: 96px 0 40px;
}
.site-footer__inner {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 24px;
}
@media (min-width: 960px) { .site-footer__inner { padding: 0 40px; } }
.site-footer__cols {
    display: grid;
    /* 左(Sitemap)は内容幅・右(Information)を広く＝長いリンクが1行に収まり折り返し不要に。列の間隔を広めにして右寄りに */
    grid-template-columns: auto 1fr;
    gap: 20px 40px;
}
@media (min-width: 768px) { .site-footer__cols { grid-template-columns: repeat(3, 1fr); gap: 48px; } }
/* gridアイテムの自動最小幅(min-content)を解除＝狭い列でも縮んで折り返す（はみ出し防止） */
.site-footer__cols > * { min-width: 0; }
.site-footer__col-brand { grid-column: span 2; }
@media (min-width: 768px) { .site-footer__col-brand { grid-column: span 1; } }
.site-footer__brand-row {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 20px;
}
.site-footer__brand-row .name {
    font-family: var(--font-rounded);
    font-size: 1.5rem;
    font-weight: 900;
}
.site-footer__brand-row .year {
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-secondary-warm);
    letter-spacing: 0.3em;
}
.site-footer__bio {
    font-size: 0.875rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.7);
    max-width: 22rem;
}
.site-footer__campus {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-secondary-warm);
    margin-top: 24px;
}
.site-footer__col-title {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-secondary-warm);
    margin-bottom: 20px;
}
.site-footer__links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 0.8125rem;
    word-break: keep-all;
    overflow-wrap: anywhere;
}
@media (min-width: 768px) { .site-footer__links { font-size: 0.875rem; } }
.site-footer__links a {
    color: rgba(255,255,255,0.8);
    transition: color 0.2s ease;
}
.site-footer__links a:hover { color: #fff; }
.site-footer__sns {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}
.site-footer__sns a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}
.site-footer__sns a:hover { background: var(--color-secondary); }
.site-footer__sns img { width: 16px; height: 16px; object-fit: contain; }
.site-footer__sns img.size-md { width: 20px; height: 20px; }
.site-footer__copy {
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.75rem;
    color: rgba(255,255,255,0.5);
}


/* TOP: theme banner / pickup / sponsors / access / faq */
.theme-banner {
    background: var(--color-primary);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.theme-banner__inner {
    display: grid;
    gap: 48px;
    align-items: center;
}
@media (min-width: 960px) { .theme-banner__inner { grid-template-columns: 7fr 5fr; gap: 48px; } }

/* LIVE NOW（開催当日のみ表示）のイベントカードグリッド */
.pickup-events-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}
@media (min-width: 768px) { .pickup-events-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .pickup-events-grid { grid-template-columns: repeat(3, 1fr); } }

/* Access card (TOP) */
.access-card {
    display: grid;
    grid-template-columns: 1fr;
    border-radius: 4px;
    overflow: hidden;
    background: var(--color-surface-low);
}
@media (min-width: 960px) { .access-card { grid-template-columns: 1fr 1fr; } }
.access-card__text { padding: 40px; order: 2; }
@media (min-width: 960px) { .access-card__text { padding: 56px; order: 1; } }
.access-card__map {
    min-height: 300px;
    position: relative;
    order: 1;
}
@media (min-width: 960px) { .access-card__map { min-height: 0; order: 2; } }
.access-card__map iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
    min-height: 300px;
}
.access-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-top: 40px;
}
.access-item { display: flex; gap: 20px; }
.access-item__icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.access-item__icon.tone-secondary {
    background: rgba(var(--accent-deep-rgb), 0.1);
    color: var(--color-secondary);
}
.access-item__icon.tone-primary {
    background: rgba(0, 30, 65, 0.1);
    color: var(--color-primary);
}
.access-item h3 {
    font-family: var(--font-rounded);
    font-weight: 700;
    color: var(--color-primary);
    font-size: 1.05rem;
    margin-bottom: 4px;
}
.access-item p {
    color: var(--color-on-surface-muted);
    font-size: 0.875rem;
    line-height: 1.7;
}
.access-cta { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 12px; }

/* FAQ + Contact (TOP) */
.faq-contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
}
@media (min-width: 960px) { .faq-contact-grid { grid-template-columns: 1fr 1fr; gap: 80px; } }
.contact-card {
    background: var(--color-surface);
    padding: 32px;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
@media (min-width: 960px) { .contact-card { padding: 40px; } }
.contact-card__lead {
    font-size: 0.875rem;
    color: var(--color-on-surface-muted);
    line-height: 1.7;
}
.contact-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    border-radius: 4px;
    background: var(--color-surface-low);
    transition: background 0.2s ease;
}
.contact-link:hover { background: var(--color-surface-high); }
.contact-link__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(0, 30, 65, 0.1);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}
.contact-link__body { flex: 1; min-width: 0; }
.contact-link__label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-on-surface-muted);
    margin-bottom: 4px;
}
.contact-link__value {
    font-weight: 700;
    color: var(--color-primary);
    transition: color 0.2s ease;
    font-family: var(--font-rounded);
}
.contact-link__value.email {
    font-size: 0.875rem;
    word-break: break-word;
}
@media (min-width: 640px) { .contact-link__value.email { font-size: 1rem; } }
.contact-link:hover .contact-link__value { color: var(--color-secondary); }
.contact-link__hint {
    font-size: 0.75rem;
    color: var(--color-on-surface-muted);
    margin-top: 4px;
}

/* Sponsors top (TOP) */
.sponsors-top {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}
@media (min-width: 960px) { .sponsors-top { gap: 40px; } }
.sponsors-top__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100px;
    width: calc(50% - 0.5rem);
    padding: 24px;
    background: var(--color-background);
    border-radius: 4px;
    transition: background 0.2s ease;
}
@media (min-width: 768px) { .sponsors-top__item { width: 11rem; } }
@media (min-width: 960px) { .sponsors-top__item { width: 14rem; } }
.sponsors-top__item:hover { background: var(--color-surface-high); }
.sponsors-top__item img {
    max-height: 80px;
    max-width: 100%;
    object-fit: contain;
    margin-bottom: 8px;
}
.sponsors-top__item .name {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    text-align: center;
    line-height: 1.2;
    letter-spacing: -0.01em;
    transition: color 0.2s ease;
}
@media (min-width: 960px) { .sponsors-top__item .name { font-size: 1.125rem; } }
.sponsors-top__item:hover .name { color: var(--color-secondary); }

/* Sponsors page (full) */
.sponsor-platinum-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
@media (min-width: 768px) { .sponsor-platinum-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; } }

.sponsor-platinum-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    background: #fff;
    border-radius: 4px;
    transition: background 0.2s ease;
    min-height: 180px;
}
@media (min-width: 768px) {
    .sponsor-platinum-item { padding: 32px; min-height: 220px; }
}
.sponsor-platinum-item:hover { background: var(--color-surface-high); }
.sponsor-platinum-item img {
    max-height: 80px;
    max-width: 100%;
    object-fit: contain;
    margin-bottom: 12px;
}
@media (min-width: 768px) {
    .sponsor-platinum-item img { max-height: 112px; margin-bottom: 16px; }
}
.sponsor-platinum-item .name {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.01em;
    transition: color 0.2s ease;
}
@media (min-width: 768px) { .sponsor-platinum-item .name { font-size: 1.25rem; } }
@media (min-width: 960px) { .sponsor-platinum-item .name { font-size: 1.5rem; } }
.sponsor-platinum-item:hover .name { color: var(--color-secondary); }

.sponsor-gold-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
@media (min-width: 768px) { .sponsor-gold-grid { grid-template-columns: repeat(4, 1fr); } }
.sponsor-gold-item {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 24px;
    background: var(--color-surface);
    border-radius: 4px;
    min-height: 110px;
    transition: background 0.2s ease;
}
.sponsor-gold-item.linkable:hover { background: var(--color-surface-high); }
.sponsor-gold-item .name {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.01em;
    transition: color 0.2s ease;
}
@media (min-width: 960px) { .sponsor-gold-item .name { font-size: 1.125rem; } }
.sponsor-gold-item.linkable:hover .name { color: var(--color-secondary); }

.sponsor-general-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
@media (min-width: 640px) { .sponsor-general-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 768px) { .sponsor-general-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 960px) { .sponsor-general-grid { grid-template-columns: repeat(5, 1fr); } }
.sponsor-general-item {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 16px;
    background: var(--color-surface);
    border-radius: 4px;
    min-height: 64px;
    transition: background 0.2s ease;
}
.sponsor-general-item.linkable:hover { background: var(--color-surface-high); }
.sponsor-general-item .name {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-primary);
}

.sponsor-cta {
    background: var(--color-primary);
    color: #fff;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}
@media (min-width: 960px) { .sponsor-cta { padding: 112px 0; } }
.sponsor-cta__inner {
    text-align: center;
    position: relative;
    z-index: 1;
}
.sponsor-cta__icon {
    font-size: 3rem !important;
    margin-bottom: 16px;
    color: var(--color-secondary-warm);
}
.sponsor-cta h2 {
    font-family: var(--font-rounded);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}
@media (min-width: 960px) { .sponsor-cta h2 { font-size: 2.25rem; } }
.sponsor-cta p {
    color: rgba(255,255,255,0.7);
    max-width: 32rem;
    margin: 0 auto 32px;
    line-height: 1.7;
}
/* Visit info page */
.visit-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
@media (min-width: 768px) { .visit-grid { grid-template-columns: 1fr 1fr; } }
.visit-card {
    background: var(--color-primary);
    color: #fff;
    padding: 24px;
    border-radius: 4px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
}
.visit-card__icon {
    font-size: 1.875rem !important;
    color: var(--color-secondary-warm);
    flex-shrink: 0;
}
.visit-card h3 {
    font-family: var(--font-rounded);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.visit-card p {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.9);
    line-height: 1.7;
}

/* FAQ（来場ガイド）: ヘアライン区切りの details/summary アコーディオン */
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 4px;
    cursor: pointer;
    list-style: none;
    font-family: var(--font-serif-jp);
    font-weight: 600;
    font-size: 1rem;
    color: var(--ink);
    transition: color 0.2s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
    content: "Q";
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 500;
    color: var(--accent-deep);
    flex-shrink: 0;
}
.faq-item summary:hover { color: var(--accent-deep); }
.faq-item__chev {
    margin-left: auto;
    flex-shrink: 0;
    color: var(--ink-3);
    transition: transform 0.3s ease;
}
.faq-item[open] .faq-item__chev { transform: rotate(180deg); }
.faq-item__a {
    margin: 0;
    padding: 0 4px 22px 34px;
    color: var(--ink-2);
    font-size: 0.92rem;
    line-height: 1.9;
    max-width: 40em;
}

.visit-link-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}
@media (min-width: 768px) { .visit-link-grid { grid-template-columns: repeat(3, 1fr); } }
.visit-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--color-surface);
    border-radius: 4px;
    transition: background 0.2s ease;
}
.visit-link:hover { background: var(--color-surface-high); }
.visit-link__icon {
    color: var(--color-secondary);
    font-size: 1.875rem !important;
    flex-shrink: 0;
}
.visit-link__body { flex: 1; }
.visit-link__label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-on-surface-muted);
}
.visit-link__title {
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-rounded);
}
.visit-link__arrow {
    color: var(--color-on-surface-muted);
    transition: transform 0.2s ease;
}
.visit-link:hover .visit-link__arrow { transform: translateX(4px); }

/* Privacy page */
.privacy-section {
    display: flex;
    flex-direction: column;
    gap: 40px;
}
.privacy-section h2 {
    font-family: var(--font-rounded);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}
@media (min-width: 960px) { .privacy-section h2 { font-size: 1.5rem; } }
.privacy-section p { color: var(--color-on-surface-muted); line-height: 1.85; }
.privacy-section ul {
    padding-left: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: var(--color-on-surface-muted);
    line-height: 1.85;
}

.venue-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
@media (min-width: 640px) { .venue-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .venue-grid { grid-template-columns: repeat(3, 1fr); } }
.venue-card {
    background: var(--color-surface-low);
    border-radius: 4px;
    padding: 24px;
    transition: background 0.2s ease, transform 0.2s ease;
}
.venue-card:hover { transform: translateY(-2px); }
.venue-card__head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}
.venue-card h4 {
    font-family: var(--font-rounded);
    font-weight: 700;
    color: var(--color-primary);
    font-size: 1.05rem;
    line-height: 1.4;
}
.venue-card p {
    font-size: 0.875rem;
    color: var(--color-on-surface-muted);
    line-height: 1.7;
}

.access-grid {
    display: grid;
    gap: 40px;
}
@media (min-width: 960px) { .access-grid { grid-template-columns: 1fr 1fr; } }
.access-info-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.access-info-item {
    background: var(--color-surface);
    padding: 24px;
    border-radius: 4px;
}
.access-info-item .head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}
.access-info-item .head .material-symbols-outlined { color: var(--color-secondary); }
.access-info-item h3 {
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-rounded);
}
.access-info-item p {
    color: var(--color-on-surface-muted);
    line-height: 1.7;
}

.access-map-wrap {
    background: var(--color-surface);
    padding: 16px;
    border-radius: 4px;
    height: 100%;
    overflow: hidden;
}
.access-map-wrap__inner {
    border-radius: 4px;
    overflow: hidden;
    aspect-ratio: 4/5;
}
@media (min-width: 960px) { .access-map-wrap__inner { aspect-ratio: auto; height: 100%; } }
.access-map-wrap iframe {
    width: 100%;
    height: 100%;
    border: 0;
    min-height: 420px;
    display: block;
}

.visit-info-banner {
    margin-top: 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 4px;
    transition: background 0.2s ease;
}
.visit-info-banner:hover { background: var(--color-primary-light); }
.visit-info-banner__left {
    display: flex;
    align-items: center;
    gap: 12px;
}
.visit-info-banner__arrow { transition: transform 0.2s ease; }
.visit-info-banner:hover .visit-info-banner__arrow { transform: translateX(4px); }

/* About page */
.about-block {
    display: grid;
    gap: 48px;
    align-items: center;
    /* 幅はコンテナに任せる（アーカイブ・委員長メッセージと同じ幅広レイアウトで揃える） */
}
@media (min-width: 960px) { .about-block { grid-template-columns: 1fr 1fr; gap: 80px; } }
.about-block__text h2 {
    font-family: var(--font-rounded);
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.4;
    margin: 12px 0 24px;
}
@media (min-width: 960px) { .about-block__text h2 { font-size: 2.25rem; } }
.about-block__text .body {
    display: flex;
    flex-direction: column;
    gap: 16px;
    color: var(--color-on-surface-muted);
    font-size: 1.05rem;
    line-height: 1.85;
}
.about-block__photo-wrap { position: relative; }
.about-block__photo-wrap .photo-placeholder {
    aspect-ratio: 4/3;
    border-radius: 4px;
}
.about-since-badge {
    position: absolute;
    z-index: 3;
    bottom: -24px;
    right: -24px;
    background: var(--color-primary);
    color: #fff;
    padding: 20px;
    border-radius: 4px;
    display: none;
}
@media (min-width: 960px) { .about-since-badge { display: block; } }
.about-since-badge .label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    /* 白系固定：背景がテーマ色(accent-deep)なので、ゴールドだと黄系テーマ年に沈む */
    color: rgba(255, 255, 255, 0.82);
    margin-bottom: 4px;
}
.about-since-badge .num {
    font-family: var(--font-display);
    font-size: 1.875rem;
    font-weight: 700;
    line-height: 1;
}

.about-text-block {
    max-width: 768px;
    margin: 0 auto;
}
.about-text-block h2 {
    font-family: var(--font-rounded);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 24px;
}
@media (min-width: 960px) { .about-text-block h2 { font-size: 1.875rem; } }
.about-text-block .body {
    color: var(--color-on-surface-muted);
    line-height: 1.85;
    font-size: 1.05rem;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.about-text-block .body a {
    color: var(--color-secondary);
    font-weight: 700;
}
.about-text-block .body a:hover { text-decoration: underline; }
.about-text-block.center { text-align: center; }
.about-text-block.center .body { text-align: left; }
.about-text-block .icon-deco {
    color: var(--color-secondary);
    font-size: 3rem !important;
    margin-bottom: 16px;
}

.chair-block {
    display: grid;
    gap: 40px;
    align-items: flex-start;
}
@media (min-width: 960px) { .chair-block { grid-template-columns: 2fr 3fr; gap: 64px; } }
.chair-block__photo {
    aspect-ratio: 3/4;
    border-radius: 4px;
    margin-bottom: 20px;
}
.chair-block__name {
    font-family: var(--font-rounded);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}
.chair-block h2 {
    font-family: var(--font-rounded);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 12px 0 24px;
}
.chair-block__title {
    font-size: 0.875rem;
    color: var(--color-on-surface-muted);
    margin-top: 4px;
}
.chair-block__msg {
    color: var(--color-on-surface-muted);
    line-height: 1.9;
    font-size: 1.05rem;
    border-left: 4px solid var(--color-secondary);
    padding-left: 24px;
}


.archive-hint {
    font-size: 0.75rem;
    color: var(--color-on-surface-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Shop page */
.shop-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}
@media (min-width: 640px) { .shop-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .shop-grid { grid-template-columns: repeat(3, 1fr); } }

.shop-card {
    cursor: pointer;
}
.shop-card .photo-placeholder { aspect-ratio: 16/9; }

.empty-state {
    text-align: center;
    padding: 64px 0;
}
.empty-state p { color: var(--color-on-surface-muted); }
.empty-state__mascot { width: 96px; height: auto; margin-bottom: 10px; }

/* 潮犬の遊び（common.js initShioinu が生成。prefers-reduced-motion では出ない） */
.shioinu-peek {
    position: fixed;
    right: 7vw;
    bottom: -120px;
    width: 92px;
    height: auto;
    z-index: 60;
    pointer-events: none;
    animation: shioinu-peek 3s ease-in-out forwards;
}
@keyframes shioinu-peek {
    0% { transform: translateY(0); }
    22% { transform: translateY(-104px); }
    78% { transform: translateY(-104px); }
    100% { transform: translateY(0); }
}
.shioinu-run {
    position: fixed;
    left: 0;
    bottom: 10px;
    z-index: 9999;
    pointer-events: none;
    animation: shioinu-run 2.6s linear forwards;
}
.shioinu-run img {
    width: 84px;
    height: auto;
    animation: shioinu-bob 0.32s ease-in-out infinite alternate;
}
@keyframes shioinu-run {
    from { transform: translateX(104vw); }
    to { transform: translateX(-140px); }
}
@keyframes shioinu-bob {
    from { transform: translateY(0) rotate(-2deg); }
    to { transform: translateY(-9px) rotate(2deg); }
}
.empty-state__sub { font-size: 0.85rem; max-width: 28rem; margin: 6px auto 0; line-height: 1.8; }
.empty-state__en {
    font-family: var(--font-display);
    font-size: 0.85rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-on-surface-muted);
    margin-bottom: 6px;
    opacity: 0.85;
}

/* Events page (timetable) */
.tt-controls {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 24px;
}
.tt-toggle {
    background: var(--color-surface-low);
    padding: 4px;
    border-radius: 6px;
    display: flex;
    gap: 4px;
}
.tt-toggle button {
    padding: 8px 14px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-on-surface-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: color 0.2s, background 0.2s;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.tt-toggle button.active { background: var(--color-primary); color: #fff; }
.tt-toggle button .material-symbols-outlined { font-size: 16px; }

.day-tabs {
    background: var(--color-surface-low);
    padding: 4px;
    border-radius: 6px;
    display: flex;
    gap: 4px;
    margin-bottom: 24px;
}
@media (min-width: 960px) { .day-tabs { display: none; } }
.day-tabs button {
    flex: 1;
    padding: 14px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-on-surface-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: color 0.2s, background 0.2s;
    border-radius: 4px;
}
.day-tabs button.active { background: var(--color-primary); color: #fff; }

.tt-cards-wrap { display: flex; flex-direction: column; gap: 48px; }
.tt-day-head {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 20px;
}
.tt-day-head .tag-text {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-on-surface-muted);
}
.tt-day-head .date {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}
.tt-day-head .dow {
    font-size: 0.75rem;
    color: var(--color-on-surface-muted);
}

.event-cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}
@media (min-width: 768px) { .event-cards-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .event-cards-grid { grid-template-columns: repeat(3, 1fr); } }
.event-card { cursor: pointer; }
.event-card .photo-placeholder { aspect-ratio: 16/9; }
.event-card__meta-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}
.event-card__meta-row .time {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--color-on-surface-muted);
    letter-spacing: 0.05em;
}

.tt-grid-wrap {
    display: grid;
    gap: 24px;
}
@media (min-width: 960px) { .tt-grid-wrap { grid-template-columns: 1fr 1fr; gap: 40px; } }
.tt-grid {
    position: relative;
    display: grid;
    gap: 8px;
}
.tt-time-col { position: relative; }
.tt-time-label {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 700;
    color: var(--color-on-surface-muted);
    letter-spacing: 0.05em;
}
.tt-venue-col {
    position: relative;
    background: var(--color-surface-low);
    border-radius: 4px;
    min-height: 100%;
}
.tt-grid-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(0, 30, 65, 0.06);
    pointer-events: none;
}
.tt-block {
    position: absolute;
    padding: 10px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: filter 0.2s ease, transform 0.2s ease;
    overflow: hidden;
    color: #fff;
    box-sizing: border-box;
}
.tt-block:hover { filter: brightness(1.08); }
.tt-block-title {
    font-family: var(--font-rounded);
    font-weight: 700;
    font-size: 0.92rem;
    line-height: 1.2;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.tt-block-venue {
    font-family: var(--font-sans);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.04em;
    opacity: 0.85;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.tt-block-meta {
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.05em;
    opacity: 0.75;
    text-transform: uppercase;
}

/* Modal content (events / shops) */
.modal-photo {
    aspect-ratio: 16/9;
    border-radius: 4px;
    margin-bottom: 24px;
}
.modal-title {
    font-family: var(--font-rounded);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.4;
    margin-bottom: 16px;
}
@media (min-width: 960px) { .modal-title { font-size: 1.875rem; } }
.modal-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.875rem;
    color: var(--color-on-surface-muted);
    margin-bottom: 24px;
}
.modal-meta .item {
    display: flex;
    align-items: center;
    gap: 6px;
}
.modal-meta .material-symbols-outlined {
    color: var(--color-secondary);
    font-size: 18px;
}
.modal-body {
    color: var(--color-on-surface-muted);
    line-height: 1.85;
    margin-bottom: 24px;
}


/* スキン: 白基調＋公式色（末尾でカスケード上書き・レイアウト規則は温存） */

/* 基盤: タイポ & 水彩背景 */
/* 本文＝ゴシック(Zen Kaku Gothic New)で可読性重視。見出し/英字は別途 Shippori/Cormorant を明示 */
body {
    font-family: var(--font-sans);
    font-weight: 400;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.9;
    position: relative;
    word-break: auto-phrase;   /* 日本語を文節単位で自然に折り返す（Chromium、他は graceful fallback） */
    line-break: strict;
}

/* 固定背景＝一枚の淡い水面。コンテンツはこの上を流れる。
      position:fixed レイヤー方式（background-attachment:fixed は iOS Safari が無視するため不可）。
      色は --accent-rgb 由来＝テーマ色を変えれば場ごと追従する。 */
body::before {
    content: "";
    position: fixed;
    inset: -15%;
    background:
        radial-gradient(ellipse 56% 46% at 10% 4%, rgba(var(--accent-rgb), 0.30), rgba(var(--accent-rgb), 0) 70%),
        radial-gradient(ellipse 50% 48% at 94% 94%, rgba(var(--accent-rgb), 0.26), rgba(var(--accent-rgb), 0) 70%),
        linear-gradient(180deg, #ffffff 0%, rgba(var(--accent-rgb), 0.08) 32%, rgba(var(--accent-rgb), 0.20) 55%, rgba(var(--accent-rgb), 0.08) 78%, #ffffff 100%);
    filter: blur(20px);
    z-index: -2;
    pointer-events: none;
    animation: ambient-drift 60s ease-in-out infinite alternate;
}
@keyframes ambient-drift {
    from { transform: translate3d(0, 0, 0) scale(1); }
    to   { transform: translate3d(-2%, 1.5%, 0) scale(1.06); }
}
@media (prefers-reduced-motion: reduce) {
    body::before { animation: none; }
}

/* 下層ページの節は色帯で塗り分けず、余白で区切る（ミニマルなブランドサイトの定石。
   節が少ないページで交互の色帯を使うと「なぜここだけ色付きか」に見えるため全ページ単一背景） */
.section.bg-surface,
.section.bg-surface-low { background: transparent; }
.page-hero { background: transparent; }

/* トップの節は帯で塗り分けず透過＝固定背景の連続性を保つ
      （画像背景のテーマ水彩/Aboutバンドだけが例外の「要所」）。
      LIVE NOW は半透明白＝固定背景が元々ぼけているので backdrop-filter なしですりガラス風になる */
.section.bg-plain { background: transparent; }
.section.bg-mist { background: transparent; }
.live-now { background: transparent; }   /* お知らせと同じ＝固定背景に直載せ（面で塗ると幅が広くくどいため） */

/* ヘッダ: ガラス化 */
.site-header { background: transparent; box-shadow: none; }
.site-header.scrolled,
.site-header.scrolled.over-dark {
    background: linear-gradient(180deg, rgba(245,249,252,0.72), rgba(245,249,252,0.34));
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    box-shadow: 0 1px 0 var(--line-soft);
}
.site-header.over-dark { background: transparent; box-shadow: none; }
.brand-year { color: var(--accent-deep); font-family: var(--font-display); font-style: italic; }
.nav-link { color: var(--ink-2); font-family: var(--font-serif-jp); font-weight: 400; }
.nav-link:hover, .nav-link.active { color: var(--accent-deep); }
.nav-link.active::after { background: var(--accent-deep); }
.hamburger-btn { color: var(--ink); }
/* over-dark / scrolled.over-dark の白黒反転を無効化して常に light glass に統一 */
.site-header.over-dark .brand-year, .site-header.scrolled.over-dark .brand-year,
body.no-scroll .site-header.over-dark .brand-year { color: var(--accent-deep); }
.site-header.over-dark .nav-link, .site-header.scrolled.over-dark .nav-link { color: var(--ink-2); }
.site-header.over-dark .nav-link:hover, .site-header.scrolled.over-dark .nav-link:hover,
.site-header.over-dark .nav-link.active, .site-header.scrolled.over-dark .nav-link.active { color: var(--accent-deep); }
.site-header.over-dark .nav-link.active::after, .site-header.scrolled.over-dark .nav-link.active::after { background: var(--accent-deep); }
.site-header.over-dark .hamburger-btn, .site-header.scrolled.over-dark .hamburger-btn,
body.no-scroll .site-header.over-dark .hamburger-btn { color: var(--ink); }

/* モバイルメニュー */
.mobile-menu { background: rgba(250, 252, 254, 0.96); backdrop-filter: blur(20px) saturate(140%); -webkit-backdrop-filter: blur(20px) saturate(140%); }
.mobile-menu__nav a { color: var(--ink); font-family: var(--font-serif-jp); border-bottom-color: var(--line); }
.mobile-menu__nav a:hover, .mobile-menu__nav a.active { color: var(--accent-deep); }

/* Back to top */


.back-to-top { background: var(--accent-deep); box-shadow: 0 8px 24px -10px rgba(var(--accent-deep-rgb), 0.5); }
.back-to-top:hover { background: var(--accent); }

/* フッタ */
.site-footer { background: transparent; color: var(--ink); border-top: 1px solid var(--line); padding-top: 80px; }
.site-footer__brand-row .name { color: var(--ink); font-family: var(--font-serif-jp); font-weight: 600; }
.site-footer__brand-row .year { color: var(--accent-deep); font-family: var(--font-display); font-style: italic; }
.site-footer__bio { color: var(--ink-2); }
.site-footer__campus, .site-footer__col-title { color: var(--accent-deep); font-family: var(--font-display); font-style: italic; }
.site-footer__links a { color: var(--ink-2); }
.site-footer__links a:hover { color: var(--accent-deep); }
.site-footer__sns a { background: var(--glass); border: 1px solid var(--line); }
.site-footer__sns a:hover { background: var(--accent-pale); }
.site-footer__copy { color: var(--ink-3); border-top: 1px solid var(--line); }

/* 見出し系 */
.eyebrow, .eyebrow.on-dark { color: var(--accent-deep); font-family: var(--font-display); font-style: italic; font-weight: 400; text-transform: uppercase; }
.section-display { color: var(--ink); font-family: var(--font-serif-jp); font-weight: 500; letter-spacing: 0.08em; line-height: 1.3; }
.section-subhead { color: var(--ink); font-family: var(--font-serif-jp); font-weight: 600; }

/* フォトプレースホルダ */
.photo-placeholder { background: linear-gradient(135deg, var(--accent-mist), var(--accent-pale)); }
.photo-placeholder.tone-dark { background: linear-gradient(135deg, var(--accent-mist), var(--accent-pale)); }
.photo-placeholder::after { color: rgba(31, 42, 61, 0.16); font-family: var(--font-serif-jp); }

/* サークル入稿画像の額装: トーンばらばらのポスター・写真を「白いマット紙に貼った」語彙で受け止める。
   どんな画像が来ても淡い水彩基調と喧嘩しない器（画像なしカードは従来の水彩プレースホルダのまま） */
.event-card .photo-placeholder:has(> img),
.shop-card .photo-placeholder:has(> img) { background: #fff; }
.event-card .photo-placeholder > img,
.shop-card .photo-placeholder > img {
    inset: 8px;
    width: calc(100% - 16px);
    height: calc(100% - 16px);
    filter: saturate(0.92);
    box-shadow: 0 0 0 1px var(--line);
}

/* カード（共通: イベント/模擬店/ピックアップ） */
.card {
    background: var(--glass-strong);
    border: 1px solid var(--line);
    border-radius: 2px;
    overflow: visible;
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    box-shadow: var(--shadow-soft);
    transition: transform .5s var(--ease), box-shadow .5s var(--ease), background .3s var(--ease);
}
.card > .photo-placeholder, .card > .card-body { position: relative; z-index: 1; }
.card > .photo-placeholder:first-child { border-radius: 2px 2px 0 0; overflow: hidden; }
.card:hover { background: var(--glass-strong); transform: translateY(-4px); box-shadow: var(--shadow-card); }
.card::before, .card::after {
    content: ""; position: absolute; width: 14px; height: 14px;
    border: 1px solid var(--accent-deep); opacity: 0.45; pointer-events: none; z-index: 3;
    transition: opacity .4s var(--ease);
}
.card::before { top: -3px; left: -3px; border-right: none; border-bottom: none; }
.card::after  { bottom: -3px; right: -3px; border-left: none; border-top: none; }
.card:hover::before, .card:hover::after { opacity: 0.85; }
.card-title { color: var(--ink); font-family: var(--font-serif-jp); font-weight: 500; }

/* ニュース */
.news-item { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 2px; box-shadow: var(--shadow-soft); backdrop-filter: blur(12px) saturate(140%); -webkit-backdrop-filter: blur(12px) saturate(140%); }
.news-item__title { color: var(--ink); font-family: var(--font-serif-jp); font-weight: 500; }
.news-item__date { font-family: var(--font-display); font-style: italic; }
/* タグ付き（当日・重要など）のお知らせは暖色で強調 */
.news-item__tag {
    display: inline-block; margin-left: 10px; vertical-align: middle;
    padding: 2px 10px; border-radius: 999px;
    background: var(--warm-ink); color: #fff;
    font-family: var(--font-sans); font-weight: 700; font-size: 0.7rem; letter-spacing: 0.04em; /* Zen Kakuは400/500/700読込のため実在ウェイトを指定 */
}
.news-item--tagged {
    background: linear-gradient(180deg, rgba(240,200,154,0.18), rgba(255,255,255,0.85));
    border-color: rgba(232,162,90,0.5);
    box-shadow: inset 3px 0 0 0 var(--warm-deep), var(--shadow-soft);
}
.news-item--tagged .news-item__date { color: var(--warm-ink); }

/* コンタクト */
.contact-card { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 2px; }
.contact-link { background: var(--glass); }
.contact-link:hover { background: var(--glass-strong); }
.contact-link__icon { background: var(--accent-mist); color: var(--accent-deep); }
.contact-link__value { color: var(--ink); font-family: var(--font-serif-jp); }

/* TOP ヒーロー（ライトな水彩基調） */
.top-hero { background: transparent; color: var(--ink); min-height: 92svh; }
/* ヒーロー背景の円（塗りグラデ＋輪郭円を重ねる） */
.top-hero__circles { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; color: var(--accent-deep); }
/* 円の輪郭=currentColor、にじみ(bloom)のグラデ停止色も変数に＝テーマ追従 */
#hbloomA stop { stop-color: var(--accent-bright); }
#hbloomB stop { stop-color: var(--accent); }
.top-hero__title { color: var(--ink); font-family: var(--font-serif-jp); font-weight: 600; }
.top-hero__date-row { color: var(--ink); font-family: var(--font-display); font-style: italic; }
.top-hero__date-row .sep { color: var(--ink-faint); }
.top-hero__date-suffix { color: var(--ink-3); }
.top-hero__side-block .label { color: var(--ink-3); font-family: var(--font-display); font-style: italic; }
.top-hero__side-block + .top-hero__side-block { border-top: 1px solid var(--line); }
.top-hero__side-block .edition-num { color: var(--ink); font-family: var(--font-display); }
.top-hero__side-block .edition-th { color: var(--accent-deep); }
.top-hero__side-block .venue-main { color: var(--ink); }
.top-hero__side-block .theme-text { color: var(--ink); font-family: var(--font-serif-jp); }

/* ページヒーロー（下層）: 日本語明朝を主役に、英語は小さなeyebrowへ降格。
   トップの目次(idx-row)が持つ「日本語大・英語小」の語彙を全ページに揃える */
.page-hero__eyebrow {
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--accent-deep);
    margin: 4px 0 10px;
}
.page-hero__title {
    color: var(--ink);
    font-family: var(--font-serif-jp);
    font-weight: 600;
    font-size: clamp(2.1rem, 5.5vw, 3rem);
    letter-spacing: 0.08em;
    text-transform: none;
}
.page-hero__lead { color: var(--ink-2); }
.page-hero__breadcrumb a { color: var(--accent-deep); }

/* TOP: theme-banner */
.theme-banner { background: transparent; color: var(--ink); }

/* TOP: access-card / sponsors-top */
.access-card { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 2px; }
.access-item__icon.tone-secondary { background: var(--accent-mist); color: var(--accent-deep); }
.access-item__icon.tone-primary { background: var(--accent-mist); color: var(--accent-deep); }
.access-item h3 { color: var(--ink); font-family: var(--font-serif-jp); }
.sponsors-top__item { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 2px; }
.sponsors-top__item:hover { background: var(--glass-strong); transform: translateY(-3px); }

/* スポンサーページ */
/* 協賛3階層はカードの構造で区別する:
   プラチナ=ロゴ入り大カード / ゴールド=白カード＋名前の上に短い金ヘアライン / 一般=箱なしの名前リスト。
   「プラチナより控えめ・一般より存在感」を面積と構造で作る（モノクロ・色弱でも判別可能） */
.sponsor-platinum-item { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 2px; }
.sponsor-gold-item {
    flex-direction: column;
    gap: 10px;
    min-height: 122px;
    background:
        linear-gradient(180deg, rgba(199, 151, 92, 0.06), rgba(199, 151, 92, 0) 45%),
        var(--glass-strong);
    border: 1px solid rgba(199, 151, 92, 0.42);  /* 公式金 #c7975c のヘアライン枠 */
    border-radius: 2px;
    transition: border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.sponsor-gold-item::before {                     /* 名前の上の短い金の線 */
    content: "";
    width: 34px;
    height: 2px;
    background: linear-gradient(90deg, #a87b45, #c7975c);
}
.sponsor-gold-item img {                         /* goldもロゴ掲載に対応（プラチナより小さく） */
    max-height: 56px;
    max-width: 80%;
    object-fit: contain;
}
.sponsor-gold-item.linkable:hover {
    border-color: rgba(199, 151, 92, 0.75);
    box-shadow: 0 12px 30px -18px rgba(199, 151, 92, 0.5);
}
.sponsor-gold-item.linkable:hover .name { color: var(--accent-deep); }
.sponsor-general-grid { gap: 0 32px; }
.sponsor-general-item {
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    min-height: 0;
    padding: 16px 4px;
}
.sponsor-general-item .name { font-weight: 500; color: var(--ink-2); }
.sponsor-general-item.linkable:hover { background: transparent; }
.sponsor-general-item.linkable:hover .name { color: var(--accent-deep); }
.sponsor-cta { background: transparent; color: var(--ink); }
.sponsor-cta h2 { color: var(--ink); font-family: var(--font-serif-jp); }
.sponsor-cta p { color: var(--ink-2); }
.sponsor-cta__icon { color: var(--accent-deep); }

/* 来場ガイド */
.visit-card { background: var(--glass-strong); color: var(--ink); border: 1px solid var(--line); border-radius: 2px; box-shadow: var(--shadow-soft); backdrop-filter: blur(12px) saturate(140%); -webkit-backdrop-filter: blur(12px) saturate(140%); }
.visit-card h3 { color: var(--ink); font-family: var(--font-serif-jp); }
.visit-card p { color: var(--ink-2); }
.visit-card__icon { color: var(--accent-deep); }
.visit-link { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 2px; }
.visit-link__icon { color: var(--accent-deep); }
.visit-link__title { color: var(--ink); font-family: var(--font-serif-jp); }

/* プライバシー */
.privacy-section h2 { color: var(--ink); font-family: var(--font-serif-jp); }

/* マップ */
.venue-card { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 2px; }
.venue-card h4 { color: var(--ink); font-family: var(--font-serif-jp); }
.access-info-item { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 2px; }
.access-info-item .head .material-symbols-outlined { color: var(--accent-deep); }
.access-info-item h3 { color: var(--ink); font-family: var(--font-serif-jp); }
.access-map-wrap { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 2px; }
.access-grid { grid-template-columns: 1fr; }
@media (min-width: 960px) { .access-grid { grid-template-columns: 0.85fr 1fr; } }
.visit-info-banner { background: var(--accent-deep); }
.visit-info-banner:hover { background: var(--accent); }

/* About ページ */
.about-block__text h2 { color: var(--ink); font-family: var(--font-serif-jp); }
.about-text-block h2 { color: var(--ink); font-family: var(--font-serif-jp); }
.about-text-block .icon-deco { color: var(--accent-deep); }
.about-since-badge { background: var(--accent-deep); }
.chair-block__name { color: var(--ink); font-family: var(--font-serif-jp); }
.chair-block h2 { color: var(--ink); font-family: var(--font-serif-jp); }
.chair-block__msg { color: var(--ink-2); border-left-color: var(--accent-deep); }

/* アーカイブ: 横スクロール・エディトリアルなタイムライン（縦版の体裁を横に）
   画面幅を問わず「上部レール＋横1列のカード」。年表全体の高さは約720pxに収まる。
   横移動はホイール／トラックパッド／スワイプと、下の .archive-seek（掴めるつまみ）で行う */
.archive-htimeline { position: relative; margin-top: 48px; }
/* 上部の水平レール（固定軸・カードは下を流れる）。全画面幅で共通 */
.archive-htimeline::before {
    content: ""; position: absolute; left: 0; right: 0; top: 8px; height: 1px; z-index: 0;
    background: linear-gradient(90deg, transparent, rgba(var(--accent-deep-rgb), 0.45) 6%, rgba(var(--accent-deep-rgb), 0.45) 94%, transparent);
}
.archive-htrack {
    display: flex; gap: 30px; overflow-x: auto; overflow-y: hidden; position: relative; z-index: 1;
    padding: 30px 4px 20px; scroll-snap-type: x proximity;
    /* 横移動の操作子は下の .archive-seek のつまみに一本化するため、ネイティブの
       スクロールバーは隠す。PCでは常時出る細いバーが、スマホではスクロール中だけ
       現れるオーバーレイのバーが、それぞれつまみと二重に見えて紛らわしいため。
       ホイール・トラックパッド・スワイプでの横スクロールはそのまま効く */
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.archive-htrack::-webkit-scrollbar { display: none; }
.archive-hcard { position: relative; flex: 0 0 auto; width: 252px; scroll-snap-align: start; }
.archive-hcard__node {
    position: absolute; top: -26px; left: 2px; width: 9px; height: 9px; border-radius: 50%;
    background: var(--accent-deep); box-shadow: 0 0 0 4px var(--bg, #eef5fb);
}
.archive-hcard__head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px; }
.archive-hcard__head .yr { font-family: var(--font-display); font-size: 1.6rem; letter-spacing: 0.04em; color: var(--accent-deep); line-height: 1; }
.archive-hcard__head .ed { font-family: var(--font-serif-jp); font-size: 0.72rem; letter-spacing: 0.16em; color: var(--ink-3); }
.archive-hcard__theme {
    font-family: var(--font-serif-jp); font-weight: 500; font-size: 1.02rem; line-height: 1.55;
    letter-spacing: 0.04em; color: var(--ink); margin: 0 0 16px; min-height: 3.2em;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.archive-hcard__poster {
    display: block; width: 100%; aspect-ratio: 1 / 1.414; border: 0; padding: 0; margin: 0;
    background: var(--glass); border-radius: 3px; overflow: hidden; cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
/* ポスターは原寸比のまま全体を表示（切り取らない）。実画像はほぼ 1:1.414 なので余白は最小 */
.archive-hcard__poster img { width: 100%; height: 100%; object-fit: contain; display: block; }
.archive-hcard__poster:hover { transform: translateY(-4px); box-shadow: 0 16px 32px -18px rgba(var(--accent-deep-rgb), 0.5); }
.archive-hcard__episode {
    margin: 16px 0 0; font-family: var(--font-serif-jp); font-size: 0.8rem; line-height: 1.9; color: var(--ink-2);
    display: -webkit-box; -webkit-line-clamp: 6; -webkit-box-orient: vertical; overflow: hidden;
}
/* ポスター無しの年は tabindex で Tab の停留点にしてあるので、フォーカスが見えるようにする
   （1年=1停留点に揃え、先頭の 1999・2000 にもキーボードで到達できるようにするため） */
.archive-row__noposter:focus-visible {
    outline: 2px solid var(--accent-deep);
    outline-offset: 3px;
}
.archive-hcard .archive-row__noposter {
    /* aspect-ratio はポスター(1/1.414)に合わせ、ポスター有無でカード高さがぶれないようにする */
    display: flex; align-items: center; justify-content: center; aspect-ratio: 1 / 1.414;
    background: var(--glass); border-radius: 3px; margin: 0;
}

/* 年表の横移動つまみ。ネイティブのスクロールバーを隠したうえで、横移動の操作子を
   これ一本にしている（電子パンフのシークバーと同じ作法）。
   タッチ環境のスクロールバーはオーバーレイ表示で位置を示すだけ＝指では掴めず、
   PCのバーとも見た目が揃わないため、全環境で同じ操作子に統一する。
   中身が収まりきる幅では JS が hidden を付けて消す */
.archive-seek {
    display: block; width: min(560px, 92%); margin: 10px auto 0;
    -webkit-appearance: none; appearance: none;
    height: 28px;              /* 指で掴める高さ。見た目の線は2pxだけ */
    background: transparent; cursor: pointer;
    touch-action: pan-y;       /* 縦のページスクロールは殺さず、横方向だけつまみに渡す */
}
.archive-seek[hidden] { display: none; }
.archive-seek::-webkit-slider-runnable-track { height: 2px; background: var(--line); border-radius: 1px; }
.archive-seek::-webkit-slider-thumb {
    -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%;
    background: #fff; border: 1px solid var(--accent-deep); margin-top: -10px;
    box-shadow: 0 2px 8px -3px rgba(var(--accent-deep-rgb), 0.45);
    transition: box-shadow 0.2s ease;
}
.archive-seek::-webkit-slider-thumb:hover { box-shadow: 0 0 0 6px rgba(var(--accent-deep-rgb), 0.12); }
.archive-seek::-moz-range-track { height: 2px; background: var(--line); border-radius: 1px; }
.archive-seek::-moz-range-thumb {
    width: 20px; height: 20px; border-radius: 50%; background: #fff;
    border: 1px solid var(--accent-deep); box-shadow: 0 2px 8px -3px rgba(var(--accent-deep-rgb), 0.45);
}
.archive-seek:focus-visible { outline: 2px solid var(--accent-deep); outline-offset: 4px; }
/* マウス/トラックパッドは狙いが正確なので、つまみは電子パンフのシークバーと同寸まで絞る
   （指で操作する端末では既定の 22px のまま＝当たり判定を確保する） */
@media (pointer: fine) {
    .archive-seek::-webkit-slider-thumb { width: 16px; height: 16px; margin-top: -7px; }
    .archive-seek::-moz-range-thumb { width: 14px; height: 14px; }
}
.archive-hint { color: var(--ink-3); }


/* イベント タイムテーブル */
.tt-toggle, .day-tabs { background: var(--glass); border: 1px solid var(--line); }
.tt-toggle button.active, .day-tabs button.active { background: var(--accent-deep); color: #fff; }
.tt-day-head .date { color: var(--ink); font-family: var(--font-display); }
.tt-venue-col { background: var(--glass); border: 1px solid var(--line); border-radius: 2px; }
.tt-grid-line { background: var(--line-soft); }
.tt-block {
    /* イベントごとの色(--bc)を淡くタイントして区別。左に色帯。文字は濃色で可読維持 */
    background: linear-gradient(160deg, color-mix(in srgb, var(--bc, var(--accent-deep)) 18%, #ffffff), color-mix(in srgb, var(--bc, var(--accent-deep)) 9%, #ffffff)) !important;
    border: 1px solid color-mix(in srgb, var(--bc, var(--accent-deep)) 32%, #ffffff);
    border-left: 4px solid var(--bc, var(--accent-deep));
    color: var(--ink) !important;
    border-radius: 2px;
}
.tt-block:hover { filter: none; transform: translateY(-1px); box-shadow: 0 8px 24px -10px rgba(var(--accent-deep-rgb), 0.4); }
.tt-block-title { color: var(--ink); font-family: var(--font-serif-jp); font-weight: 500; }
.tt-block-venue, .tt-block-meta { color: var(--ink-2); }

/* モーダル */
.modal-backdrop { background: rgba(20, 35, 55, 0.45); }
.modal-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px) saturate(140%);
    -webkit-backdrop-filter: blur(12px) saturate(140%);
    border-radius: 2px;
    overflow-x: hidden;
    position: relative;
}
.modal-card::before, .modal-card::after {
    content: ""; position: absolute; width: 28px; height: 28px;
    border: 1px solid var(--accent-deep); opacity: 0.55; pointer-events: none;
}
.modal-card::before { top: 0; left: 0; border-right: none; border-bottom: none; }
.modal-card::after  { bottom: 0; right: 0; border-left: none; border-top: none; }
.modal-close { background: none; border: 1px solid var(--line); color: var(--ink); }
.modal-close:hover { border-color: var(--accent-deep); color: var(--accent-deep); background: none; }
.modal-title { color: var(--ink); font-family: var(--font-serif-jp); font-weight: 500; }
.modal-meta .material-symbols-outlined { color: var(--accent-deep); }

/* ライトボックス（暗オーバーレイは維持） */
.lightbox-caption strong { font-family: var(--font-serif-jp); }

/* ボタン */
.btn-primary { background: var(--accent-deep); }
.btn-ghost { box-shadow: inset 0 0 0 1px rgba(40,70,110,0.22); color: var(--ink); }
.btn-ghost:hover { background: rgba(var(--accent-deep-rgb), 0.06); }

/* ローダー（index app-loader を light 化） */
.app-loader { background: var(--bg); color: var(--ink); }
.app-loader__glow { display: none; }
.app-loader__eyebrow { color: var(--ink-3); font-family: var(--font-display); font-style: italic; }
.app-loader__brand { color: var(--ink); font-family: var(--font-serif-jp); font-weight: 500; }
.app-loader__wave svg path:nth-child(1) { stroke: rgba(var(--accent-deep-rgb), 0.25); }
.app-loader__wave svg path:nth-child(2) { stroke: var(--accent); }

/* 協賛導線・調整 */


/* アーカイブ: 「No Poster」表示の体裁（archive-hcard で再利用）＋ヒント */
.archive-row__noposter { font-family: var(--font-display); font-size: 0.76rem; letter-spacing: 0.18em; color: var(--ink-3); margin-bottom: 12px; }
.archive-hint { margin-top: 28px; justify-content: center; }

/* 協賛(企業向け)誘導帯（top, news の上） */
.sponsor-promo { position: relative; }
.sponsor-promo__inner {
    position: relative;
    display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
    padding: 36px 40px;
    background: linear-gradient(135deg, rgba(213,232,241,0.9), rgba(184,216,234,0.78));
    border: 1px solid var(--line);
    border-radius: 2px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(12px) saturate(140%);
    -webkit-backdrop-filter: blur(12px) saturate(140%);
}
.sponsor-promo__inner::before, .sponsor-promo__inner::after {
    content: ""; position: absolute; width: 18px; height: 18px;
    border: 1px solid var(--accent-deep); opacity: 0.5; pointer-events: none;
}
.sponsor-promo__inner::before { top: -3px; left: -3px; border-right: none; border-bottom: none; }
.sponsor-promo__inner::after  { bottom: -3px; right: -3px; border-left: none; border-top: none; }
.sponsor-promo__text { min-width: 0; }
.sponsor-promo__eyebrow { font-family: var(--font-display); font-style: italic; letter-spacing: 0.28em; text-transform: uppercase; color: var(--accent-deep); font-size: 0.82rem; margin-bottom: 8px; }
.sponsor-promo__title { font-family: var(--font-serif-jp); font-weight: 600; font-size: 1.3rem; color: var(--ink); line-height: 1.5; margin-bottom: 8px; }
.sponsor-promo__desc { color: var(--ink-2); font-size: 0.9rem; line-height: 1.8; max-width: 44em; }
.sponsor-promo__cta { flex-shrink: 0; }
/* 終了後の御礼（CTAなし）＝中央寄せで落ち着いた見せ方に */
.sponsor-promo--thanks .sponsor-promo__inner { justify-content: center; text-align: center; }
.sponsor-promo--thanks .sponsor-promo__desc { margin-left: auto; margin-right: auto; }
@media (max-width: 640px) {
    .sponsor-promo__inner { padding: 28px 24px; }
    .sponsor-promo__title { font-size: 1.15rem; }
}

/* 協賛募集ページ */
.plan-card { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 2px; padding: 32px; position: relative; }
.plan-card .plan-rank { font-family: var(--font-display); font-style: italic; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent-deep); font-size: 0.82rem; margin-bottom: 10px; }
.plan-card h3 { font-family: var(--font-serif-jp); font-weight: 600; color: var(--ink); font-size: 1.25rem; margin-bottom: 14px; }
.plan-card ul { list-style: none; display: flex; flex-direction: column; gap: 8px; color: var(--ink-2); font-size: 0.9rem; }
.plan-card li { display: flex; gap: 8px; align-items: flex-start; }
.plan-card li .material-symbols-outlined { color: var(--accent-deep); font-size: 18px; flex-shrink: 0; margin-top: 3px; }
.plan-card .plan-target { font-size: 0.82rem; color: var(--ink-3); margin: -6px 0 14px; }
.plan-card .plan-price {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--ink);
    margin: 0 0 14px;
}
.plan-card .plan-price small { font-size: 0.6em; font-weight: 500; color: var(--ink-3); margin-left: 2px; }
/* プラチナの上辺キーラインは銀鼠（金だとゴールドプランと紛らわしいため使わない） */
.plan-card--featured { border-color: rgba(122, 138, 155, 0.55); overflow: hidden; }
.plan-card--featured::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 3px;
    background: linear-gradient(90deg, #7a8a9b, #d7dfe7 45%, #9aa9b8);
}
/* ゴールドプランには協賛ページのgoldカードと同じ金ヘアラインで対応させる */
.plan-card--gold { border-color: rgba(199, 151, 92, 0.45); overflow: hidden; }
.plan-card--gold::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 3px;
    background: linear-gradient(90deg, #a87b45, #e8c48e 45%, #c7975c);
}

/* 数字で見る潮風祭（協賛募集。site.json sponsorStats 駆動・未設定なら節ごと非表示） */
.sponsor-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 920px;
    margin: 0 auto;
}
@media (min-width: 640px) { .sponsor-stats { grid-template-columns: repeat(3, 1fr); } }
.sponsor-stats__item {
    text-align: center;
    padding: 28px 16px;
    border-top: 1px solid var(--line);
}
.sponsor-stats__num {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2.6rem, 5vw, 3.6rem);
    line-height: 1;
    color: var(--ink);
    letter-spacing: -0.02em;
    margin: 0 0 10px;
}
.sponsor-stats__num small {
    font-size: 0.35em;
    font-weight: 500;
    margin-left: 4px;
    color: var(--accent-deep);
}
.sponsor-stats__label { font-size: 0.88rem; color: var(--ink-2); margin: 0; }

/* お申し込みの流れ */
.sponsor-flow {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    max-width: 1040px;
    margin: 0 auto;
    counter-reset: none;
}
@media (min-width: 768px) { .sponsor-flow { grid-template-columns: repeat(4, 1fr); gap: 22px; } }
.sponsor-flow__step {
    position: relative;
    background: var(--glass-strong);
    border: 1px solid var(--line);
    border-radius: 2px;
    padding: 24px 20px 22px;
}
.sponsor-flow__step .num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;                     /* 円＝波紋の語彙 */
    border: 1px solid var(--accent-deep);
    color: var(--accent-deep);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 14px;
}
.sponsor-flow__step h3 {
    font-family: var(--font-serif-jp);
    font-weight: 600;
    font-size: 1.02rem;
    color: var(--ink);
    margin: 0 0 8px;
}
.sponsor-flow__step p { font-size: 0.85rem; color: var(--ink-2); line-height: 1.8; margin: 0; }

.plan-note { text-align: center; font-size: 0.82rem; color: var(--ink-3); margin-top: 24px; }

/* 申込締切（JSが状態で出し分け: 期限内=金バッジ / 締切後=中立 / 祭終了後=御礼） */
.sponsor-deadline {
    display: inline-block;
    margin: 18px auto 0;
    padding: 8px 20px;
    border: 1px solid rgba(199, 151, 92, 0.5);
    border-radius: 999px;
    font-size: 0.88rem;
    font-weight: 700; /* Zen Kakuは400/500/700読込のため実在ウェイトを指定 */
    color: var(--gold-ink);
}
.sponsor-deadline--closed { border-color: var(--line); color: var(--ink-2); }

/* 英数字 Space Grotesk / 深い青の水彩 */

/* Space Grotesk 化に伴う擬似 italic の解除（Space Grotesk自体にイタリック字形が無く機械的な傾きになるため） */
.eyebrow, .eyebrow.on-dark, .brand-year,
.site-footer__campus, .site-footer__col-title, .site-footer__brand-row .year,
.top-hero__date-row, .top-hero__side-block .label,
.sponsor-promo__eyebrow, .plan-card .plan-rank,
.archive-row__noposter,
.app-loader__eyebrow,
.news-item__date, .about-band__since {
    font-style: normal;
}

/* 深色の水彩面：グレースケール地紋(bg-panel-texture.webp=フッター/スクロール後ヘッダー/モバイルメニュー/協賛帯の共通パネル紋様) をトークン着色。
   multiplyで質感を刻んだ上に overlay で彩度とコントラストを戻し、薄い screen で中間調を持ち上げる
   （Original_color_1/2.png の元の色味に合わせて調整）。--accent系を変えれば色が追従（画像差し替え不要） */
.site-header.scrolled,
.site-header.scrolled.over-dark,
.mobile-menu,
.site-footer,
.sponsor-promo__inner {
    background-color: var(--accent-deep);
    background-image:
        linear-gradient(rgba(var(--accent-rgb),0.26), rgba(var(--accent-rgb),0.26)),
        linear-gradient(180deg, rgba(var(--accent-rgb),0.75), rgba(var(--accent-rgb),0.45)),
        url("../images/bg-panel-texture.webp");
    background-blend-mode: screen, overlay, multiply;
    background-size: cover, cover, cover;
    background-position: center, center, center;
    background-repeat: no-repeat;
}
/* 面ごとに見せる領域を変えて表情を変える */
.site-header.scrolled, .site-header.scrolled.over-dark { background-position: center, center, 50% 8%; }
.mobile-menu { background-position: center, center, 28% 22%; }
.site-footer { background-position: center, center, 50% 82%; }
.sponsor-promo__inner { background-position: center, center, 72% 38%; }

/* ヘッダー（スクロール時）＝深い青水彩・白文字 */
.site-header.scrolled { box-shadow: 0 1px 0 rgba(255,255,255,0.08); backdrop-filter: none; -webkit-backdrop-filter: none; }
.site-header.scrolled .brand-year,
.site-header.scrolled.over-dark .brand-year { color: var(--accent-mist); }
.site-header.scrolled .nav-link,
.site-header.scrolled.over-dark .nav-link { color: rgba(255,255,255,0.86); }
.site-header.scrolled .nav-link:hover,
.site-header.scrolled .nav-link.active,
.site-header.scrolled.over-dark .nav-link:hover,
.site-header.scrolled.over-dark .nav-link.active { color: #fff; }
.site-header.scrolled .nav-link.active::after,
.site-header.scrolled.over-dark .nav-link.active::after { background: var(--accent-bright); }
.site-header.scrolled .hamburger-btn,
.site-header.scrolled.over-dark .hamburger-btn { color: #fff; }

/* モバイルメニュー＝深い青水彩・白文字 */
.mobile-menu { backdrop-filter: none; -webkit-backdrop-filter: none; }
.mobile-menu__nav a { color: rgba(255,255,255,0.92); border-bottom-color: rgba(255,255,255,0.12); }
.mobile-menu__nav a:hover, .mobile-menu__nav a.active { color: var(--accent-mist); }

/* フッタ＝深い青水彩・白文字（小さめ文字は明るめの色でコントラスト確保） */
.site-footer { color: #fff; border-top: none; }
.site-footer__brand-row .name { color: #fff; }
.site-footer__brand-row .year { color: var(--accent-mist); }
.site-footer__bio { color: rgba(255,255,255,0.85); }
.site-footer__campus, .site-footer__col-title { color: var(--accent-mist); }
.site-footer__links a { color: rgba(255,255,255,0.9); }
.site-footer__links a:hover { color: #fff; }
.site-footer__sns a { background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); }
.site-footer__sns a:hover { background: rgba(255,255,255,0.22); }
.site-footer__copy { color: rgba(255,255,255,0.72); border-top: 1px solid rgba(255,255,255,0.18); }

/* top 協賛帯＝深い青水彩・白文字 */
.sponsor-promo__inner { border: 1px solid rgba(255,255,255,0.25); box-shadow: var(--shadow-air); }
.sponsor-promo__inner::before, .sponsor-promo__inner::after { border-color: rgba(255,255,255,0.6); opacity: 0.7; }
.sponsor-promo__eyebrow { color: var(--accent-mist); }
.sponsor-promo__title { color: #fff; }
.sponsor-promo__desc { color: rgba(255,255,255,0.82); }
.sponsor-promo__cta.btn-primary { background: #fff; color: var(--accent-deep); }
.sponsor-promo__cta.btn-primary:hover { filter: brightness(0.96); }

/* コンテンツの重なり順（可読性維持） */
.section > .container { position: relative; z-index: 1; }

/* イベント/模擬店カード: 説明(一言・PR)はカード面で非表示、拡大(モーダル)時のみ表示 */
.event-card .card-text,
.shop-card .card-text { display: none; }

/* ヘッダー/フッターの文字を読みやすく */
/* ヘッダー nav: 明朝500・0.95rem（細く小さいと視認性が落ちるため） */
.nav-link { font-weight: 500; font-size: 0.95rem; letter-spacing: 0.05em; }
.site-header.scrolled .nav-link,
.site-header.scrolled.over-dark .nav-link { font-weight: 500; }
.mobile-menu__nav a { font-weight: 500; }
/* フッター: リンク/本文を一回り大きく・しっかり目に（深い青の水彩上で白文字） */
.site-footer__links { font-size: 0.95rem; }
.site-footer__links a { font-weight: 500; color: rgba(255,255,255,0.92); }
.site-footer__links a:hover { color: #fff; }
.site-footer__bio { font-size: 0.92rem; color: rgba(255,255,255,0.86); }


/* 電子パンフレット ビューア */
.pamphlet-viewer { margin-top: 8px; }
/* パンフ表紙カード（iframe埋め込みは廃止: スマホブラウザはPDFのインライン表示に非対応が多いためリンク方式） */
.pamphlet-card { display: grid; gap: 28px; padding: clamp(24px, 4vw, 44px); background: var(--glass-strong); border: 1px solid var(--line); border-radius: 6px; box-shadow: var(--shadow-soft); }
@media (min-width: 720px) { .pamphlet-card { grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: clamp(28px, 4vw, 48px); } }
.pamphlet-card__cover { margin: 0 auto; width: min(240px, 70vw); }
.pamphlet-card__cover img { display: block; width: 100%; height: auto; border-radius: 4px; box-shadow: var(--shadow-card); }
.pamphlet-card__eyebrow { font-family: var(--font-display); font-size: 0.75rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent-deep); margin: 0 0 10px; }
.pamphlet-card__title { font-family: var(--font-serif-jp); font-size: clamp(1.2rem, 2.4vw, 1.6rem); font-weight: 600; color: var(--ink); margin: 0 0 12px; }
.pamphlet-card__note { color: var(--ink-3); font-size: 0.92rem; line-height: 1.9; margin: 0; }
.pamphlet-card .pamphlet-actions { justify-content: flex-start; margin-top: 22px; }
.pamphlet-placeholder {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
    min-height: 360px; padding: 48px 40px; text-align: center; color: var(--ink-2);
    border: 1px dashed var(--line); border-radius: 8px; background: var(--glass);
}
.pamphlet-placeholder .material-symbols-outlined { font-size: 3rem; color: var(--accent-deep); }
.pamphlet-placeholder__mascot { width: 110px; height: auto; margin-bottom: 6px; }
.pamphlet-placeholder p { margin: 0; }
.pamphlet-placeholder__sub { font-size: 0.85rem; color: var(--ink-3); max-width: 28rem; line-height: 1.8; }

/* 電子パンフ めくりビューア（StPageFlip）。
   ページ本体はライブラリがcanvasに描画するため、ここでは枠まわりの装飾だけを持つ */
.pamphlet-flip { max-width: 620px; margin: 0 auto; }   /* 既定(スマホ)は1ページ分の幅 */
@media (min-width: 768px) { .pamphlet-flip { max-width: min(1120px, 94vw); } }  /* 広い画面は見開き2ページ分 */
.pamphlet-flip__controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    margin-top: 24px;
}
.pamphlet-flip__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: var(--glass-strong);
    color: var(--ink);
    cursor: pointer;
    transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.pamphlet-flip__btn:hover { border-color: var(--accent-deep); color: var(--accent-deep); }
.pamphlet-flip__page {
    font-family: var(--font-display);
    font-size: 0.85rem;
    letter-spacing: 0.12em;
    color: var(--ink-2);
    min-width: 76px;
    text-align: center;
}
.pamphlet-flip__hint {
    margin: 14px 0 0;
    text-align: center;
    font-size: 0.78rem;
    color: var(--ink-3);
}
.pamphlet-flip .pamphlet-actions { justify-content: center; margin-top: 22px; }
.pamphlet-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 24px; }

/* スマホ用の横スワイプページャー（めくりなし。スクロールスナップで1ページずつ止まる） */
.pam-pager {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;               /* ページ位置はシークバーが担うのでスクロールバーは隠す */
    border-radius: 2px;
}
.pam-pager::-webkit-scrollbar { display: none; }
.pam-slide {
    flex: 0 0 100%;
    scroll-snap-align: center;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}
.pam-slide img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 80vh;
    aspect-ratio: 1787 / 2473;   /* 実パンフのページ比率＝画像読み込み前から高さが確定（レイアウトシフト防止） */
    object-fit: contain;
    box-shadow: 0 0 0 1px var(--line), 0 14px 40px -18px rgba(31, 42, 61, 0.35);
}

/* ===== 広い画面用の3Dめくりビューア（自作・ライブラリ不使用） =====
   leaf(紙)=表面+裏面の2面。綴じ目(leafの左辺)を軸に rotateY(0→-180deg) でめくれる。
   重なり順は z-index ではなく translateZ の奥行きで表現（preserve-3d では z-index が
   効かないため）。表紙・裏表紙のときの中央寄せ(.pam3d の translateX ±25%)は、
   leaf のめくりと同じ duration/easing にしてある＝「本を開く」動きが一体に見える。 */
.pam3d-stage {
    position: relative;
    perspective: 2400px;
    width: min(100%, calc(80vh * 1.4456));   /* 見開き比率 3574/2473 を保ちつつ高さ80vh以内 */
    margin: 0 auto;
}
.pam3d {
    position: relative;
    width: 100%;
    aspect-ratio: 3574 / 2473;
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.4, 0.05, 0.3, 1);
}
.pam3d--noanim, .pam3d--noanim .pam3d-leaf { transition: none !important; }
.pam3d-leaf {
    position: absolute;
    left: 50%;
    top: 0;
    width: 50%;
    height: 100%;
    transform-origin: left center;
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.4, 0.05, 0.3, 1);
}
.pam3d-face {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    background: var(--bg);
    box-shadow: 0 0 0 1px var(--line);
    overflow: hidden;
}
.pam3d-face--back { transform: rotateY(180deg); }
.pam3d-face img { display: block; width: 100%; height: 100%; object-fit: fill; }
/* 綴じ目側にほんのり陰影＝紙の丸みをほのめかす */
.pam3d-face--front::after,
.pam3d-face--back::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}
.pam3d-face--front::after { background: linear-gradient(to right, rgba(31, 42, 61, 0.10), transparent 8%); }
.pam3d-face--back::after { background: linear-gradient(to left, rgba(31, 42, 61, 0.10), transparent 8%); }
/* クリックでめくる透明ゾーン（右半分=次へ / 左半分=前へ。端では該当側をJSが隠す） */
.pam3d-zone {
    position: absolute;
    top: 0;
    height: 100%;
    width: 50%;
    z-index: 5;
    cursor: pointer;
}
.pam3d-zone--prev { left: 0; }
.pam3d-zone--next { right: 0; }
/* 表紙・裏表紙で本がはみ出すぶんを刈る（transformによる見た目のはみ出しでスクロールバーが出ないように） */
.pamphlet-flip { overflow-x: clip; }
@media (prefers-reduced-motion: reduce) {
    .pam3d, .pam3d-leaf { transition: none; }
}

/* ページ移動のシークバー（ヘアラインの軌道＋波紋の丸つまみ） */
.pamphlet-flip__seek {
    display: block;
    width: min(420px, 82%);
    margin: 18px auto 0;
    -webkit-appearance: none;
    appearance: none;
    height: 20px;
    background: transparent;
    cursor: pointer;
}
.pamphlet-flip__seek::-webkit-slider-runnable-track {
    height: 2px;
    background: var(--line);
    border-radius: 1px;
}
.pamphlet-flip__seek::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid var(--accent-deep);
    margin-top: -7px;
    transition: box-shadow 0.2s ease;
}
.pamphlet-flip__seek::-webkit-slider-thumb:hover { box-shadow: 0 0 0 5px rgba(var(--accent-deep-rgb), 0.12); }
.pamphlet-flip__seek::-moz-range-track {
    height: 2px;
    background: var(--line);
    border-radius: 1px;
}
.pamphlet-flip__seek::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid var(--accent-deep);
}


/* 会場マップ（静的画像） */
.venue-map { margin-top: 8px; }
.venue-map__stage { position: relative; }
.venue-map__viewport {
    position: relative; overflow: auto; border-radius: 6px;
    border: 1px solid var(--line); background: #eef5fb;
    -webkit-overflow-scrolling: touch;
}
.venue-map__canvas { position: relative; width: 100%; }
.venue-map__base { display: block; width: 100%; height: auto; user-select: none; -webkit-user-drag: none; }
.venue-map__foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin-top: 16px; }
.venue-map__note { font-size: 0.78rem; color: var(--ink-3); margin: 0; }
.map-legend { display: flex; flex-wrap: wrap; gap: 10px 24px; list-style: none; margin: 18px 0 0; padding: 0; }
.map-legend li { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--ink-2); }
.map-num {
    display: inline-flex; align-items: center; justify-content: center;
    width: 22px; height: 22px; border-radius: 50%; flex: none;
    /* マップ内の番号ピン（金地#c7975c×白数字×白縁）と同じ見た目で統一。番号は隣接テキストの補助表示 */
    background: var(--color-secondary-warm); border: 1px solid #fff; color: #fff;
    font-size: 0.75rem; font-weight: 700; line-height: 1; /* Zen Kakuは400/500/700読込のため実在ウェイトを指定 */
}
.venue-card h4 { display: flex; align-items: center; gap: 8px; }

/* トップ刷新: ヒーロー(潮流・ライト) & テーマ節(波紋・中央収め) */
/* HERO: 既定はライト潮流グラデ＋装飾円。JSが hero.jpg の読込を確認すると .has-bg が付き、水彩背景に切替＆円をフェードアウト（画像が無い/404なら円のまま） */
.top-hero { color: var(--ink); background: linear-gradient(180deg, #ffffff 0%, var(--accent-mist) 100%); }
.top-hero.has-bg {
    background-color: #f4f9fc;
    /* B: 全面白ベール45%のみ（青ティント・スクリム・ハローなし。hero.jpg を最も濃い基準として45%固定） */
    background-image:
        linear-gradient(rgba(255,255,255,0.45), rgba(255,255,255,0.45)),
        url("../images/hero.jpg");
    background-size: cover, cover;
    background-position: center, center;
    background-repeat: no-repeat, no-repeat;
}
.top-hero__circles { transition: opacity 0.6s ease; }
.top-hero.has-bg .top-hero__circles { opacity: 0; }
/* 円のグロー(塗り)もテーマ追従（HTMLの stop-color を上書き） */
#hbloomA stop { stop-color: var(--accent-bright); }
#hbloomB stop { stop-color: var(--accent); }
.top-hero__title { color: var(--ink); }
.top-hero__date-row { color: var(--ink); }
.top-hero__date-row .sep { color: var(--color-secondary-warm); }  /* 祭りの体温＝公式金をファーストビューに一差し */
.top-hero__date-suffix { color: var(--warm-ink); }
.top-hero__side-block .label { color: var(--ink-2); }
.top-hero__side-block + .top-hero__side-block { border-top: 1px solid rgba(40,70,110,0.22); }
.top-hero__side-block .edition-num { color: var(--ink); }
.top-hero__side-block .edition-th { color: var(--accent-deep); }
.top-hero__side-block .venue-main { color: var(--ink); }
.top-hero__side-block .theme-text { color: var(--ink); }
.top-hero__side-block .hours-text { color: var(--ink); }
@media (min-width: 960px) { .top-hero__side { border-left: 1px solid rgba(40,70,110,0.22); } }

/* キャッチコピー（site.json catchcopy。題字の下・明朝） */
.top-hero__catch {
    font-family: var(--font-serif-jp);
    font-weight: 500;
    font-size: clamp(1.02rem, 2.2vw, 1.3rem);
    letter-spacing: 0.12em;
    color: var(--ink-2);
    margin: 14px 0 4px;
}

/* 開催日カウントダウン（eventStartから自動・終了後は非表示） */
.top-hero__side-block .countdown-num {
    color: var(--ink);
    font-family: var(--font-serif-jp);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: 0.08em;
}
.top-hero__side-block .countdown-num b {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 2.4rem;
    letter-spacing: -0.02em;
    color: var(--gold-ink);   /* カウントダウン＝高揚の数字は金 */
    margin: 0 4px;
}
.top-hero__side-block .countdown-today {
    color: var(--gold-ink);
    font-size: 1.35rem;
}

/* スクロールキュー（ヒーロー左下。細いヘアラインが伸び縮みする） */
.top-hero__scrollcue {
    position: absolute;
    left: clamp(24px, 4vw, 60px);
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 1;
}
.top-hero__scrollcue .txt {
    font-family: var(--font-display);
    font-size: 0.62rem;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--ink-3);
    writing-mode: vertical-rl;
}
.top-hero__scrollcue .line {
    width: 1px;
    height: 56px;
    background: linear-gradient(180deg, rgba(40, 70, 110, 0.35), transparent);
    transform-origin: top;
    animation: scrollcue 2.6s var(--ease, ease) infinite;
}
@keyframes scrollcue {
    0% { transform: scaleY(0); }
    45% { transform: scaleY(1); }
    100% { transform: scaleY(1); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
    .top-hero__scrollcue .line { animation: none; }
}
@media (max-width: 700px) { .top-hero__scrollcue { display: none; } }

/* テーマ節：ページ唯一の水彩全面（zero試作の構図を移植）。
      左＝活字（左揃えのラベル・大きな「超」・説明文）、右＝ポスター裸置き。左右の重さで釣り合わせる */
.theme-banner {
    color: var(--ink);
    background-color: var(--bg);
    background-image:
        linear-gradient(rgba(255,255,255,0.42), rgba(255,255,255,0.42)),
        url("../images/theme.jpg");
    background-size: cover, cover;
    background-position: center, center;
    background-repeat: no-repeat, no-repeat;
    padding-top: clamp(110px, 15vw, 190px);
    padding-bottom: clamp(110px, 15vw, 190px);
}
.theme-banner__grid { display: grid; gap: clamp(48px, 7vw, 100px); align-items: center; }
@media (min-width: 860px) { .theme-banner__grid { grid-template-columns: minmax(0, 1fr) auto; } }
.theme-banner__inner { display: block; text-align: left; }
/* 公式ポスター（ポスター無し時は wrap ごと display:none → 1カラム中央に戻る）
   アーカイブの歴代ポスターと同じ「紙を裸で置く＋濃い影」の語彙で統一（白マット額装は使わない） */
.theme-banner__poster-wrap {
    margin: 0 auto; width: min(300px, 72vw); text-align: center;
}
.theme-banner__poster-wrap img {
    display: block; width: 100%; height: auto;
    aspect-ratio: 1 / 1.414; object-fit: contain;
    border-radius: 2px;
    box-shadow: 0 30px 60px -26px rgba(18, 52, 88, 0.5), 0 4px 14px -6px rgba(18, 52, 88, 0.28);
}
.theme-banner__poster-badge { font-family: var(--font-display); font-size: 0.62rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--accent-deep); margin-top: 16px; }
.theme-banner__label { font-family: var(--font-display); font-size: 0.7rem; font-weight: 400; letter-spacing: 0.32em; text-transform: uppercase; color: var(--accent-deep); }
.theme-banner__char { display: inline-block; max-width: 100%; font-family: var(--font-serif-jp); font-weight: 600; color: var(--ink); font-size: clamp(4.4rem, 13vw, 8rem); line-height: 1.1; margin: 26px 0 30px; }
.theme-banner__desc { color: var(--ink); font-family: var(--font-serif-jp); font-size: 0.95rem; max-width: 34em; margin: 0; text-align: left; letter-spacing: 0.06em; line-height: 2.2; }

/* ===== About バンド（トップ）=====
      写真は使わず、固定の藍のグラデーション＋波紋（テーマ節と同じ円の語彙）だけで構成。
      テーマ色に依存しない藍なので、黄系テーマの年でも白文字が破綻しない。 */
.about-band {
    position: relative;
    overflow: hidden;
    color: #fff;
    background: radial-gradient(140% 180% at 88% 16%, var(--band-indigo-1) 0%, var(--band-indigo-2) 52%, var(--band-indigo-3) 100%);
    padding-top: clamp(96px, 13vw, 168px);
    padding-bottom: clamp(96px, 13vw, 168px);
}
.about-band::before {
    /* 右奥の淡い光。写真の代わりに面へ奥行きを一つだけ足す */
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(closest-side at 80% 42%, rgba(255, 255, 255, 0.07), transparent 72%);
}
.about-band .container { position: relative; z-index: 1; }
.about-band__inner { max-width: 640px; }
.about-band__title {
    font-family: var(--font-serif-jp);
    font-weight: 600;
    font-size: clamp(1.9rem, 4.6vw, 3rem);
    line-height: 1.35;
    letter-spacing: 0.06em;
    margin: 18px 0 24px;
}
.about-band__lead {
    font-family: var(--font-serif-jp);
    color: rgba(255, 255, 255, 0.88);
    line-height: 2;
    letter-spacing: 0.04em;
    max-width: 34em;
}
/* この帯は藍の暗色地固定のため eyebrow は金を使う（全ページの .eyebrow.on-dark は他にヒーローにもあるが、
   そちらは現状ライト地のため対象外＝ここだけ帯要素を挟んだセレクタで限定する） */
.about-band .eyebrow.on-dark { color: var(--color-secondary-warm); }
.about-band__since {
    margin-top: 28px;
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--color-secondary-warm); /* 固定の藍地なのでゴールドで安全 */
}
.about-band__since .num { font-size: 1.25rem; font-weight: 700; margin-left: 6px; }
.about-band__cta { margin-top: 36px; }
/* 波紋（テーマ節と同じ円の語彙。写真の上に淡く重ねる） */
.about-band__ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.28);
    pointer-events: none;
}
.about-band__ring--lg { width: clamp(320px, 42vw, 620px); aspect-ratio: 1; right: -6%; top: 50%; transform: translateY(-50%); }
.about-band__ring--sm { width: clamp(140px, 18vw, 260px); aspect-ratio: 1; right: 16%; bottom: -10%; }
.about-band__ring--left { width: clamp(240px, 30vw, 460px); aspect-ratio: 1; left: -10%; bottom: -34%; border-color: rgba(255, 255, 255, 0.14); }
@media (max-width: 700px) { .about-band__ring--sm { display: none; } }

/* 白フチのアウトラインボタン（写真・濃色地用） */
.btn-outline-light {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 30px;
    border-radius: 2px;
    border: 1px solid rgba(255, 255, 255, 0.75);
    color: #fff;
    font-family: var(--font-serif-jp);
    font-size: 0.92rem;
    letter-spacing: 0.12em;
    text-decoration: none;
    transition: background 0.3s ease, color 0.3s ease, transform 0.3s var(--ease);
}
.btn-outline-light .material-symbols-outlined { font-size: 18px !important; }
.btn-outline-light:hover { background: #fff; color: var(--ink); transform: translateY(-2px); }

/* ===== コンテンツ目次ナビ =====
      写真に依存しない活字とヘアラインの索引（zero試作から移植）。行き先は index.html に静的記述 */
.idx-rows { margin-top: 48px; border-top: 1px solid var(--line); }
.idx-row {
    display: flex;
    align-items: center;
    gap: clamp(20px, 4vw, 52px);
    padding: clamp(26px, 4vw, 40px) 4px;
    border-bottom: 1px solid var(--line);
    text-decoration: none;
}
.idx-row__no {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: 0.8rem;
    letter-spacing: 0.16em;
    color: var(--ink-3);
    flex-shrink: 0;
}
.idx-row__t .ja {
    display: block;
    font-family: var(--font-serif-jp);
    font-weight: 500;
    font-size: clamp(1.35rem, 3.2vw, 1.9rem);
    letter-spacing: 0.14em;
    color: var(--ink);
    transition: transform 0.4s var(--ease);
}
.idx-row__t .en {
    display: block;
    font-family: var(--font-display);
    font-size: 0.66rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-top: 0.7em;
}
.idx-row__arw {
    margin-left: auto;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ink-2);
    flex-shrink: 0;
    transition: background 0.35s ease, color 0.35s ease, border-color 0.35s ease;
}
.idx-row__arw .material-symbols-outlined { font-size: 18px !important; }
.idx-row:hover .idx-row__t .ja { transform: translateX(10px); }
.idx-row:hover .idx-row__arw { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ===== LIVE NOW（開催当日のみ表示）===== */
.live-now__stamp {
    margin-top: 10px;
    font-size: 0.78rem;
    color: var(--ink-2);
    letter-spacing: 0.04em;
}
.live-tag {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--accent-deep);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}
.live-tag__dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #fff;
    animation: liveTagPulse 1.6s ease-in-out infinite;
}
.live-tag--soon {
    background: transparent;
    color: var(--accent-deep);
    border: 1px solid var(--accent-deep);
}
@keyframes liveTagPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.35; transform: scale(0.75); }
}
@media (prefers-reduced-motion: reduce) { .live-tag__dot { animation: none; } }

/* 公式ロゴ（ヘッダー：明地=青 / スクロール濃地=白）＋フッターロゴ */
.brand { align-items: center; gap: 10px; }
.brand-logo { display: block; height: 28px; width: auto; }
.brand-logo--white { display: none; }
.site-header.scrolled .brand-logo--blue,
.site-header.scrolled.over-dark .brand-logo--blue { display: none; }
.site-header.scrolled .brand-logo--white,
.site-header.scrolled.over-dark .brand-logo--white { display: block; }
@media (max-width: 600px) { .brand-logo { height: 24px; } }
.site-footer__logo { display: block; height: 34px; width: auto; }

/* 潮犬マスコット（About） */
.mascot-block { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: center; max-width: 880px; margin: 0 auto; }
@media (min-width: 768px) { .mascot-block { grid-template-columns: 200px 1fr; gap: 40px; } }
.mascot-block__art { display: flex; justify-content: center; }
.mascot-block__art img { width: clamp(150px, 40vw, 200px); height: auto; }
.mascot-block__text h2 { font-family: var(--font-serif-jp); font-weight: 600; color: var(--ink); font-size: 1.6rem; margin: 8px 0 14px; }
.mascot-block__romaji { font-family: var(--font-display); font-size: 0.9rem; letter-spacing: 0.12em; color: var(--accent-deep); margin-left: 8px; }
.mascot-block__text p { color: var(--ink-2); line-height: 1.9; }

/* ===== Accessibility: skip-link / focus-visible ===== */
/* スキップリンク: 通常は画面外。キーボードでフォーカスされた時だけ左上に出現する（ヘッダーと調和する白地＋アクセント文字） */
.skip-link {
    position: fixed;
    top: -60px;
    left: 12px;
    z-index: 1000;
    background: #fff;
    color: var(--accent-deep);
    padding: 10px 20px;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: var(--shadow-soft);
    transition: top 0.2s ease;
}
.skip-link:focus {
    top: 12px;
}
/* サイト全体共通のフォーカスリング（キーボード操作時のみ強調表示） */
:focus-visible {
    outline: 2px solid var(--accent-deep);
    outline-offset: 2px;
}

/* イベントページ: 時間軸ビューの現在時刻ライン（開催当日のみJSが挿入。装飾のためAT向けはaria-hidden） */
.tt-now-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-deep);
    z-index: 5;
    pointer-events: none;
}
.tt-now-line::before {
    content: "";
    position: absolute;
    left: -5px;
    top: 50%;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--accent-deep);
    transform: translateY(-50%);
}
.tt-now-line__label {
    position: absolute;
    right: 4px;
    top: -9px;
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: #fff;
    background: var(--accent-deep);
    padding: 1px 6px;
    border-radius: 999px;
    white-space: nowrap;
}

/* 明朝(Shippori Mincho)は 400/500/600 のみ読込のため、見出し系の 700/900 指定は合成太字（にじみ）になる。600 に正規化 */
.visit-card h3, .access-item h3, .contact-link__value, .visit-link__title, .venue-card h4, .access-info-item h3,
.about-block__text h2, .about-text-block h2, .chair-block__name, .chair-block h2,
.sponsor-cta h2, .privacy-section h2, .lightbox-caption strong,
.photo-placeholder::after {
    font-weight: 600;
}

/* 協賛募集: 申込ルート2択（フォーム/様式ダウンロード）の2カラム */
.grid-2 { grid-template-columns: 1fr; }
@media (min-width: 768px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
.sponsor-apply-note { font-size: 0.8rem; color: var(--ink-3); margin-top: 14px; line-height: 1.7; }
.sponsor-apply-note a { color: var(--accent-deep); text-decoration: underline; }

/* パンフ広告の料金表（枠｜寸法｜料金・ヘアライン罫線） */
.plan-rate-table { width: 100%; border-collapse: collapse; font-size: 0.86rem; margin: 4px 0 16px; }
.plan-rate-table th, .plan-rate-table td { padding: 6px 4px; border-bottom: 1px solid var(--line); text-align: left; }
.plan-rate-table th { font-family: var(--font-display); font-weight: 700; color: var(--ink-3); font-size: 0.72rem; letter-spacing: 0.04em; text-transform: uppercase; } /* 見出しは和文=Zen Kakuフォールバックのため実在の700を指定 */
.plan-rate-table td { font-family: var(--font-display); color: var(--ink-2); }
.plan-rate-table td:first-child { font-weight: 700; color: var(--accent-deep); width: 1.6em; }
.plan-rate-table td:last-child { text-align: right; color: var(--ink); font-weight: 600; }

/* パンフ広告のB5比較図（装飾・aria-hidden。説明はfigcaptionで担保）。
   プラン3枚カードのグリッド直下・全幅に配置。ミニB5(同一viewBox)を並べ、
   各B5内には該当する広告枠1つだけを塗って大きさの違いを比較できるようにしている */
.plan-rate-figure { margin: 48px 0 0; padding-top: 40px; border-top: 1px solid var(--line); }
.plan-rate-figure__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 640px;
    margin: 0 auto;
}
@media (max-width: 640px) {
    .plan-rate-figure__grid { grid-template-columns: repeat(2, 1fr); max-width: 320px; }
}
.plan-rate-svg { display: block; width: 100%; height: auto; }
.plan-rate-figure__label { margin-top: 10px; text-align: center; font-family: var(--font-display); font-size: 0.78rem; color: var(--ink-3); }
.plan-rate-figure__label b { color: var(--accent-deep); font-weight: 700; margin-right: 4px; }
.plan-rate-figure__label span { display: block; }
.plan-rate-figure__cap { font-size: 0.74rem; color: var(--ink-3); text-align: center; margin-top: 24px; line-height: 1.6; }



/* ヘッダー右端の企業向けユーティリティリンク（来場者ナビとは別枠の控えめな導線。960px未満はモバイルメニュー側にあるため非表示） */
.header-biz-link {
    display: none;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--ink-3);
    white-space: nowrap;
    margin-left: 32px;
    padding-left: 24px;
    border-left: 1px solid var(--line);
    transition: color 0.2s ease;
}
@media (min-width: 960px) { .header-biz-link { display: inline-block; } }
.header-biz-link:hover,
.header-biz-link.active { color: var(--accent-deep); }

/* スクロール後のヘッダーは濃紺の水彩地になりナビが白系に切り替わるため、企業リンクも同じ挙動で追従させる */
.site-header.scrolled .header-biz-link,
.site-header.scrolled.over-dark .header-biz-link {
    color: rgba(255, 255, 255, 0.72);
    border-left-color: rgba(255, 255, 255, 0.28);
}
.site-header.scrolled .header-biz-link:hover,
.site-header.scrolled .header-biz-link.active,
.site-header.scrolled.over-dark .header-biz-link:hover,
.site-header.scrolled.over-dark .header-biz-link.active { color: #fff; }

/* 協賛の基本プラン（パンフレット広告）は主役として藍の上辺キーラインで示す
   （Webオプションのプラチナ=銀鼠・ゴールド=金との「基本とオプション」の対比） */
.plan-card--base { border-color: rgba(31, 111, 156, 0.45); overflow: hidden; }
.plan-card--base::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-deep), #79b8d9 45%, var(--accent));
}

/* マップ凡例のトイレバッジ（campus-map.svg内のWCマーカーと同じ青の角丸で対応させる） */
.map-wc {
    display: inline-flex; align-items: center; justify-content: center;
    width: 22px; height: 22px; border-radius: 6px; flex: none;
    background: var(--accent); border: 1px solid #fff; color: #fff;
    font-size: 0.62rem; font-weight: 700; line-height: 1;
    box-shadow: 0 0 0 1px rgba(51, 153, 204, 0.25);
}