/* --- Reset & Basic Styles --- */
:root {
    --color-black: #02040a;
    --color-blue-gray: #192233;
    --color-dark-gray: #0d1117;
    --color-gold: #C5A157;
    --color-light-gold: #e0c28e;
    --color-hover-gold-1: #e6c030;
    --color-hover-2: #b38f12;
    --color-white: #ffffff;
    --color-text-gray: #cccccc;
    --font-serif: 'Noto Serif JP', serif;
    --font-sans: 'Noto Sans JP', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background-color: var(--color-black); color: var(--color-white); line-height: 1.8; font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-smoothing: grayscale; overflow-x: hidden; }
a { text-decoration: none; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-serif); font-weight: 500; }

/* --- Common Styles --- */
.container { max-width: 1000px; margin: 0 auto; padding: 0 20px; position: relative; z-index: 2; }
.section-title { font-size: 44px; text-align: center; margin-bottom: 10px; line-height: 1.5; color: var(--color-white); }
.section-subtitle { font-family: var(--font-sans); font-size: 14px; font-weight: 700; text-align: center; color: var(--color-gold); letter-spacing: 2px; margin-bottom: 50px; }
.large-title { font-size: 54px; }
.title--decorated { position: relative; padding: 30px 0; }
.title--decorated::before, .title--decorated::after { 
    content: ''; 
    position: absolute; 
    left: 50%; 
    transform: translateX(-50%); 
    width: 60%; 
    max-width: 400px; 
    height: 1px; 
    background: linear-gradient(to right, transparent, var(--color-white) 50%, transparent); 
}
.title--decorated::before { top: 0; }
.title--decorated::after { bottom: 0; }
.cta-area { text-align: center; margin-top: 50px; }

/* --- CTA Button --- */
.btn { display: inline-block; padding: 18px 70px; font-family: var(--font-serif); font-size: 1.4rem; font-weight: 700; text-align: center; border-radius: 50px; position: relative; overflow: hidden; transition: all 0.4s ease; z-index: 1; }
.btn--gold { 
    background: linear-gradient(145deg, var(--color-light-gold), var(--color-gold)); 
    color: var(--color-black);
    border: 2px solid var(--color-light-gold); 
    box-shadow: 0 5px 15px rgba(224, 194, 142, 0.2), inset 0 -2px 5px rgba(0,0,0,0.2); 
    text-shadow: 0 1px 1px rgba(255,255,255,0.3);
    padding-top: 19px; /* 文字位置を調整 */
    padding-bottom: 19px; /* 文字位置を調整 */
}
.btn--gold::before { content: ''; position: absolute; top: 0; left: -150%; width: 50%; height: 100%; background: linear-gradient(100deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.6) 50%, rgba(255,255,255,0) 100%); transform: skewX(-25deg); animation: shine 4s infinite linear; }
.btn--gold:hover { 
    transform: translateY(-5px); 
    background: linear-gradient(145deg, var(--color-hover-gold-1), var(--color-hover-2));
    color: var(--color-black);
    border: 2px solid var(--color-light-gold);
    box-shadow: none;
}
@keyframes shine { 0% { left: -150%; } 50% { left: 150%; } 100% { left: 150%; } }

/* --- Animation --- */
.anim-fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.anim-fade-in.is-visible { opacity: 1; transform: translateY(0); }

/* --- Hero Section --- */
.hero { 
    position: relative; 
    height: 650px;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
}
.hero__image-container { 
    position: absolute; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    overflow: hidden; 
}
.hero__image { 
    width: 100%; 
    height: 100%; 
    object-fit: cover;
    display: block;
}
.hero__overlay { position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: radial-gradient(circle at 20% 30%, rgba(197, 161, 87, 0.1) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(197, 161, 87, 0.05) 0%, transparent 50%); }

/* --- Section Styling & Rhythm --- */
.section-bg { position: relative; padding: 120px 0; background: linear-gradient(160deg, var(--color-blue-gray) 0%, var(--color-dark-gray) 100%); }
.section-bg--dark { background: var(--color-black); }

/* --- 各セクションの斜めカットの黒い余白を削除 --- */
.section-bg--top-cut::before { 
    content: ''; 
    position: absolute; 
    top: -1px; 
    left: 0; 
    width: 100%; 
    height: 0 !important; /* 高さを0に設定して見えなくする */
    background-image: none !important; /* 背景画像を無効化 */
    z-index: 1; 
}

.section-bg--bottom-cut::after { 
    content: ''; 
    position: absolute; 
    bottom: -1px; 
    left: 0; 
    width: 100%; 
    height: 0 !important; /* 高さを0に設定して見えなくする */
    background-image: none !important; /* 背景画像を無効化 */
    z-index: 1; 
}

.overview.section-bg {
    background-image: url('img/overview-bg.jpg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    position: relative;
    padding: 135px 0; /* 上下余白を15px少なくする (150px -> 135px) */
}
.overview.section-bg::before,
.overview.section-bg::after {
    display: none;
}

/* --- 7つのメリットセクションの背景を画像に変更 --- */
.merits.section-bg {
    background-image: url('img/merits-bg.jpg'); /* 画像のパスを正確に指定してください */
    background-size: cover; /* 画面全体を覆うように画像を拡大縮小 */
    background-position: center; /* 画像を中央に配置 */
    background-repeat: no-repeat; /* 画像を繰り返さない */
    color: var(--color-white); /* テキストを見やすくするため */
    position: relative;
    overflow: hidden; /* 元のmerits.section-bgにあったoverflowを維持 */
    padding: 80px 0; /* paddingを調整 */
}

.presenters-panel.section-bg {
    background: 
        radial-gradient(ellipse 1200px 600px at 50% 100%, rgba(197, 161, 87, 0.1) 0%, transparent 50%),
        linear-gradient(165deg, #0d1117 0%, #1a2338 40%, #0f1520 100%);
}

.event-info.section-bg {
    background: 
        linear-gradient(to bottom, rgba(197, 161, 87, 0.08) 0%, transparent 20%),
        radial-gradient(ellipse at center, rgba(25, 34, 51, 0.6) 0%, transparent 70%),
        linear-gradient(155deg, #1a2744 0%, #192233 35%, #0f1520 70%, #0a0e1a 100%);
}

/* --- イベント開催概要セクションの斜めカットを無効化 --- */
.event-info.section-bg--top-cut::before {
    background-image: none !important; /* SVG背景画像を無効化 */
    height: 0 !important; /* 高さを0にして表示されないようにする */
}


.overview__box { background-color: rgba(0,0,0,0.4); padding: 40px; text-align: left; border: 1px solid rgba(255,255,255,0.1); backdrop-filter: blur(10px); border-radius: 8px; }
.overview__box p { font-family: var(--font-serif); font-size: 20px; color: var(--color-text-gray); }

.judges-panel__eyecatch {
    text-align: left; /* 左寄せに修正 */
    font-family: var(--font-serif);
    font-size: 28px;
    line-height: 1.8;
    color: var(--color-light-gold); /* 「7つのメリット」と同じ文字色に設定 */
    margin: 50px auto;
    max-width: 900px;
    font-weight: 500;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.judges-panel { padding: 0; position: relative; }
.judges-panel__header { 
    padding: 200px 0 150px; 
    position: relative; 
    background: var(--color-black);
    overflow: hidden;
}
.judges-panel__header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(110deg, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.5) 40%, rgba(0,0,0,0.7) 100%), 
        url('img/judges-bg.jpg');
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    transform: skewY(-5deg);
    transform-origin: top left;
    height: 130%;
}
.judges-panel__header .container {
    position: relative;
    z-index: 2;
}

.judges-panel__body { 
    padding: 150px 0 120px; 
    background: var(--color-black);
    position: relative;
}
.judges-panel__body::before {
    content: '';
    position: absolute;
    top: -120px;
    left: 0;
    width: 100%;
    height: 240px;
    background: var(--color-black);
    transform: skewY(-5deg);
    transform-origin: top right;
    z-index: 1;
}
.panel__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: 50px; }
.panel__card { text-align: left; }
.panel__icon-placeholder { width: 100%; aspect-ratio: 1 / 1; background: linear-gradient(135deg, var(--color-gold), var(--color-light-gold)); margin-bottom: 20px; display: flex; align-items: center; justify-content: center; font-size: 40px; color: var(--color-black); border-radius: 8px; }
.panel__photo { width: 100%; aspect-ratio: 1 / 1; margin-bottom: 20px; border-radius: 8px; overflow: hidden; }
.panel__photo-img { width: 100%; height: 100%; object-fit: cover; display: block; }
.panel__name { font-size: 1.5rem; margin-bottom: 10px; line-height: 1.2; }
.panel__name-en { 
    display: inline-block; /* ローマ字を横に配置 */
    font-family: var(--font-sans); 
    font-size: 0.9rem; 
    color: var(--color-gold); 
    margin-top: 0; /* 上マージンを削除 */
    margin-left: 5px; /* 必要に応じて漢字との間にスペースを追加 */
    font-weight: 400; 
    vertical-align: middle; /* 垂直方向の中央揃え */
}
.panel__role { font-size: 0.9rem; color: var(--color-text-gray); margin-bottom: 15px; font-weight: 700; line-height: 1.6; }
.panel__bio { font-size: 0.9rem; color: var(--color-text-gray); line-height: 1.7; }
.panel__special-judge { max-width: 31%; margin: 60px auto 0; }
.panel__special-judge .panel__role { font-weight: 700; color: var(--color-gold); }

.merits-title__main { display: block; font-size: 52px; color: var(--color-gold); margin-top: 10px; }
.merits__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px 60px; margin-top: 80px; }
.merits__item { 
    padding: 30px; 
    position: relative; 
    background-color: rgba(0,0,0,0.4); 
    border-radius: 8px; 
    backdrop-filter: blur(10px); 
    border: 1px solid rgba(197, 161, 87, 0.3);
    transition: all 0.3s ease;
}
.merits__item:hover {
    border-color: rgba(197, 161, 87, 0.6);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(197, 161, 87, 0.2);
}
.merits__number { position: absolute; top: -25px; left: 30px; width: 50px; height: 50px; background: linear-gradient(135deg, var(--color-gold), var(--color-light-gold)); color: var(--color-black); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 700; box-shadow: 0 4px 15px rgba(197, 161, 87, 0.4); z-index: 10; }
.merits__title { font-size: 1.5rem; background: linear-gradient(135deg, var(--color-hover-gold-1), var(--color-hover-2)); color: transparent; -webkit-background-clip: text; background-clip: text; margin-bottom: 15px; margin-top: 20px; }
.merits__text { color: var(--color-text-gray); font-size: 0.9rem; }
.merits__item--wide { grid-column: 1 / -1; text-align: center; }
.merits__item--wide .merits__number { left: 50%; transform: translateX(-50%); }

/* --- Organizer Section --- */
.organizer-section {
    padding: 100px 0;
    background: var(--color-black);
}

.organizer__card {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    max-width: 900px;
    margin: 50px auto 0;
    background-color: rgba(0,0,0,0.4);
    padding: 40px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(197, 161, 87, 0.3);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.organizer__photo {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.organizer__photo-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.organizer__content {
    flex: 1;
    text-align: left;
}

.organizer__name {
    font-size: 2.2rem;
    margin-bottom: 15px;
    line-height: 1.2;
    color: var(--color-white);
}

.organizer__name-en {
    display: block;
    font-family: var(--font-sans);
    font-size: 1.1rem;
    color: var(--color-gold);
    margin-top: 8px;
    font-weight: 400;
}

.organizer__role {
    font-size: 1rem;
    color: var(--color-gold);
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.6;
}

.organizer__bio {
    font-size: 0.95rem;
    color: var(--color-text-gray);
    line-height: 1.8;
}

/* スマホ版調整 */
@media (max-width: 768px) {
    .organizer-section {
        padding: 80px 0;
    }
    
    .organizer__card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        width: 100%; /* 親要素（.container）のコンテンツ幅いっぱいに広げる */
        margin: 30px auto 0; /* 中央寄せを維持 */
        padding: 0; /* カード自体の水平パディングを削除 */
        padding-top: 30px; /* カード上部のパディングを追加 */
        max-width: none; /* デスクトップのmax-widthをリセット */
        gap: 30px;
    }
    
    .organizer__photo {
        width: 200px; /* 元の画像サイズを維持 */
        height: 200px; /* 元の画像サイズを維持 */
        border-radius: 50%; /* 元の円形を維持 */
        margin-bottom: 20px; /* 写真とテキストの間の余白を維持 */
    }
    
    .organizer__content {
        text-align: center; /* テキストは中央寄せに戻す */
        padding: 0 20px 20px; /* 左右に20px、下部に20pxのパディングを追加 */
        width: 100%; /* コンテンツがカードの全幅を占めるように */
    }
    
    .organizer__name {
        font-size: 1.8rem;
    }
    
    .organizer__name-en {
        font-size: 1rem;
    }
    
    .organizer__role {
        font-size: 0.9rem;
        margin-bottom: 15px;
    }
    
    .organizer__bio {
        font-size: 0.9rem;
        text-align: left;
    }
}
.image-slider {
    background-color: var(--color-black);
    padding: 60px 0;
    overflow: hidden;
    position: relative;
    width: 100%;
    z-index: 10; /* マウスイベントを受け取るためにz-indexを追加 */
}

.image-slider::before,
.image-slider::after {
    content: '';
    position: absolute;
    top: 0;
    width: 150px; /* グラデーションの幅を広げてより自然に */
    height: 100%;
    z-index: 2;
}

.image-slider::before {
    left: 0;
    background: linear-gradient(to right, var(--color-black) 20%, transparent 100%);
}

.image-slider::after {
    right: 0;
    background: linear-gradient(to left, var(--color-black) 20%, transparent 100%);
}

.image-slider__track {
    display: flex;
    gap: 24px; /* 画像間のスペース */
    /* (画像幅 + ギャップ) * 合計画像数 (20枚 * 2セット) */
    width: calc((360px + 24px) * 40); 
    animation: scroll 90s linear infinite;
}

.image-slider img {
    width: 360px;
    height: 240px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0; /* 画像が縮まないように設定 */
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.5); /* 画像に影を追加 */
}
.merits__item--wide .merits__number {
        left: 30px; /* 他の番号と同じ位置に調整 */
        transform: none; /* 中央寄せのスタイルをリセット */
    }


/* スクロールアニメーションの定義 */
@keyframes scroll {
    from {
        transform: translateX(0);
    }
    to {
        /* (画像幅 + ギャップ) * 半分の画像数（1セット分）を移動 */
        transform: translateX(calc(-1 * (360px + 24px) * 20)); 
    }
}
/* ▲▲▲ Image Slider CSS End ▲▲▲ */

/* --- Coming Soon Message --- */
.coming-soon-message {
    text-align: center;
    padding: 80px 40px;
    background-color: rgba(0,0,0,0.4);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(197, 161, 87, 0.3);
    max-width: 600px;
    margin: 50px auto 0;
}

.coming-soon-title {
    font-family: var(--font-serif);
    font-size: 3.6rem;
    color: var(--color-gold);
    margin-bottom: 20px;
    font-weight: 500;
    text-shadow: 0 3px 15px rgba(0,0,0,0.8);
    background: linear-gradient(135deg, var(--color-light-gold), var(--color-gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 3px;
    text-align: center;
}

.coming-soon-text {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    color: var(--color-text-gray);
    font-weight: 500;
    text-align: center;
}

.details { margin-bottom: 100px; }
.details__grid { display: flex; justify-content: space-around; gap: 40px; }
.details__item { text-align: center; flex: 1; }
.details__title { font-size: 1.8rem; margin-bottom: 15px; color: var(--color-gold); }
.details__text { font-size: 1.2rem; }
.details__text--date { font-size: 1.8rem; font-weight: 700; color: var(--color-white); letter-spacing: 1px; }
.tickets { text-align: center; }
.tickets__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 50px; align-items: center; }
.tickets__card { background-color: rgba(0,0,0,0.4); padding: 40px 20px; border: 1px solid rgba(255, 255, 255, 0.1); transition: all 0.3s ease; border-radius: 8px; backdrop-filter: blur(10px); }
.tickets__card--vip { padding-top: 60px; padding-bottom: 60px; border: 2px solid var(--color-gold); transform: scale(1.1); box-shadow: 0 0 35px rgba(224, 194, 142, 0.5); background: radial-gradient(circle, rgba(197, 161, 87, 0.1), transparent 70%), rgba(0,0,0,0.4); z-index: 10; position: relative; }
.tickets__tier { font-size: 1.8rem; margin-bottom: 5px; }
.tickets__tier-note { color: var(--color-text-gray); font-size: 0.9rem; margin-bottom: 20px; }
.tickets__price { font-size: 2.5rem; font-weight: 700; color: var(--color-gold); margin-bottom: 30px; }
.tickets__features { text-align: left; max-width: 200px; margin: 0 auto; list-style: none; }
.tickets__features li { margin-bottom: 10px; font-size: 0.9rem; }
.tickets__features i { color: var(--color-gold); margin-right: 10px; }

/* --- Footer --- */
.site-footer { padding-top: 0; }
.site-footer__copyright a {
    color: var(--color-white); /* フォントカラーを白に設定 */
    text-decoration: underline; /* アンダーラインを常に表示 */
}

.site-footer__copyright a:hover,
.site-footer__copyright a:active,
.site-footer__copyright a:visited { /* 訪問後もアンダーラインを維持 */
    color: var(--color-white); /* マウスオーバー、クリック後、訪問後もフォントカラーを白に維持 */
    text-decoration: underline; /* マウスオーバー、クリック後、訪問後もアンダーラインを維持 */
}
.vip-benefits { 
    padding: 150px 0 100px; 
    background: 
        radial-gradient(ellipse 1400px 700px at 50% 0%, rgba(197, 161, 87, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, var(--color-black) 0%, #0a0e1a 100%);
}
.vip-benefits__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 50px; }
.vip-benefits__card { background-color: rgba(6, 13, 25, 0.6); padding: 30px; text-align: center; border: 1px solid #333; display: flex; flex-direction: column; border-radius: 8px; }
.vip-benefits__image { 
    width: 100%; 
    aspect-ratio: 400 / 250; /* アスペクト比を400:250に変更 */
    border-radius: 8px; 
    order: 3; 
    margin-top: 15px; 
    background-size: cover; /* 画像が要素を覆うように拡大縮小 */
    background-position: center; /* 画像を中央に配置 */
    background-repeat: no-repeat; /* 画像を繰り返さない */
}
.vip-benefits__card:nth-child(1) .vip-benefits__image {
    background-image: url('img/vip_01.jpg');
}
.vip-benefits__card:nth-child(2) .vip-benefits__image {
    background-image: url('img/vip_02.jpg');
}
.vip-benefits__card:nth-child(3) .vip-benefits__image {
    background-image: url('img/vip_03.jpg');
}

.vip-benefits__label { display: inline-block; background: linear-gradient(135deg, var(--color-gold), var(--color-light-gold)); color: var(--color-black); padding: 5px 15px; font-weight: 700; border-radius: 20px; order: 0; width: fit-content; margin: 0 auto; }
.vip-benefits__title { 
    font-size: 1.6rem; 
    margin: 20px 0; 
    order: 1; 
    color: var(--color-light-gold); /* 「7つのメリット」と同じ文字色に設定 */
}
.vip-benefits__text { font-size: 0.9rem; color: var(--color-text-gray); text-align: left; order: 2; margin-bottom: 15px; }

/* --- Seating Chart Section --- */
.seating-chart__image-container {
    margin: 50px auto 0;
    text-align: center;
    max-width: 800px;
}
.seating-chart__image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}
.seating-chart__legend {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin-top: 30px;
    flex-wrap: wrap;
}
.legend-item {
    display: flex;
    align-items: center;
    font-size: 1rem;
    color: var(--color-text-gray);
}
.legend-color {
    width: 20px;
    height: 20px;
    display: inline-block;
    margin-right: 10px;
    border-radius: 4px;
}
.legend-color--vip {
    background-color: var(--color-gold);
}
.legend-color--s {
    background-color: #82d6a7; /* S席の色を変更 */
}
.legend-color--a {
    background-color: #7090db; /* A席の色を変更 */
}


/* --- Final CTA Intro Section --- */
.final-cta-intro {
    padding: 120px 0;
    background: 
        radial-gradient(ellipse 1400px 500px at 50% 0%, rgba(197, 161, 87, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, var(--color-black) 0%, #0a0e1a 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta-intro::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(197, 161, 87, 0.05) 0%, transparent 70%);
    z-index: 1;
}

.final-cta-intro__content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.final-cta-intro__title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 500;
    color: var(--color-light-gold); /* 「7つのメリット」と同じ文字色に変更 */
    line-height: 1.5;
    margin-bottom: 50px;
    text-shadow: 0 3px 15px rgba(0,0,0,0.8);
    background: linear-gradient(135deg, var(--color-light-gold), var(--color-gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 3px;
    text-align: center;
}

.final-cta-intro__details {
    background-color: rgba(0,0,0,0.6);
    padding: 50px 40px;
    border-radius: 12px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(197, 161, 87, 0.3);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.final-cta-intro__date {
    font-family: var(--font-serif);
    font-size: 3.6rem;
    font-weight: 500;
    color: var(--color-gold);
    margin-bottom: 40px;
    letter-spacing: 3px;
    text-shadow: 0 3px 15px rgba(0,0,0,0.8);
    background: linear-gradient(135deg, var(--color-light-gold), var(--color-gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.final-cta-intro__venue {
    margin-top: 30px;
    position: relative;
}

.final-cta-intro__venue::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--color-gold), transparent);
}

.final-cta-intro__venue-label {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-text-gray);
    margin-bottom: 12px;
    font-weight: 500;
}

.final-cta-intro__venue-name {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 500;
    color: var(--color-white);
    margin-bottom: 10px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.8);
}

.final-cta-intro__venue-access {
    font-family: var(--font-sans);
    font-size: 1.2rem;
    color: var(--color-text-gray);
    font-weight: 400;
}

.final-cta-intro__cta {
    margin-top: 50px;
    text-align: center;
}

.footer-cta-wrapper { padding: 10px 0; }
.sponsors { 
    padding: 70px 0; 
    margin-bottom: 90px; /* スポンサー企業セクションの下に50pxの余白を追加 */
}

/* --- SPONSORS SECTION NEW STYLES --- */
.sponsors__rank-category {
    margin-bottom: 60px; /* 各ランクカテゴリ間のスペース */
    text-align: center;
}

.sponsors__rank-title {
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
    padding-bottom: 15px;
}

.sponsors__rank-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--color-gold);
    border-radius: 2px;
}

.sponsors__grid {
    display: grid;
    gap: 40px;
    margin-top: 40px;
    justify-content: center; /* グリッドアイテムを中央揃え */
}

.sponsors__grid--diamond {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.sponsors__grid--diamond .sponsors__item:nth-child(3) {
    grid-column: 1 / -1;
    max-width: 480px;
    margin: 0 auto;
}

.sponsors__grid--platinum {
    grid-template-columns: repeat(2, 1fr);
}

.sponsors__grid--gold {
    grid-template-columns: repeat(2, 1fr);
}

.sponsors__grid--bronze {
    grid-template-columns: repeat(2, 1fr);
}

.sponsors__item {
    background-color: rgba(6, 13, 25, 0.6);
    padding: 25px; /* 上下左右のパディングを維持 */
    border: 1px solid #333;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
    min-height: 220px; /* 高さを確保 */

    /* レイアウト調整のための変更: MarkとProfileを横並びにする */
    display: flex;
    align-items: flex-start; /* MarkとProfileのトップを揃える */
    gap: 20px; /* MarkとProfile間の余白 */
    text-align: left; /* テキスト全体を左寄せ */
    position: relative; /* 必要に応じて、今後の微調整のために */
}

.sponsors__item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    border-color: rgba(255, 255, 255, 0.4);
}

.sponsors__mark {
    width: 84px; /* マークのサイズを1.2倍 (70px * 1.2 = 84px) */
    height: auto; /* 縦横比を維持 */
    object-fit: contain;
    flex-shrink: 0; /* 縮まないように設定 */
}

.sponsors__profile {
    display: flex;
    flex-direction: column; /* 写真とテキストを縦に並べる */
    flex-grow: 1; /* 残りのスペースを占めるように広げる */
    text-align: left; /* プロフィール内のテキストを左寄せ */
}

.sponsors__photo-placeholder {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #444, #222);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    color: #888;
    margin-bottom: 15px; /* 写真と会社名の間の余白 */
    overflow: hidden; /* 画像が入る場合のために */
    flex-shrink: 0; /* 縮まないように */
}

.sponsors__photo-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sponsors__company {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 5px;
}

.sponsors__person {
    font-size: 1rem;
    color: var(--color-gold);
    margin-bottom: 10px;
    font-weight: 500;
}

.sponsors__bio {
    font-size: 0.85rem;
    color: var(--color-text-gray);
    line-height: 1.6;
}

/* END SPONSORS SECTION NEW STYLES */

.site-footer__copyright { font-size: 0.8rem; color: #888; text-align: center; padding: 40px 0; border-top: 1px solid #222; background-color: var(--color-black); }

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
    .panel__grid { grid-template-columns: repeat(2, 1fr); }
    .panel__special-judge { max-width: 48%; }
    .vip-benefits__grid { grid-template-columns: 1fr; gap: 40px; }
    .tickets__card--vip { transform: scale(1.05); }

    /* sponsors__grid--diamond, sponsors__grid--gold は既に2列なので変更なし */
}

@media (max-width: 768px) {
    body { font-size: 15px; }
    .section-bg, .judges-panel__header, .judges-panel__body, .vip-benefits, .footer-cta-wrapper, .sponsors { padding-top: 60px; padding-bottom: 60px; }
    /* .section-bg--top-cut::before, .section-bg--bottom-cut::after は上記で無効化済みのため、ここでは追加変更なし */
    .section-title { font-size: 34px; }
    .large-title { font-size: 40px; }
    .judges-panel__description p, .overview__box p { font-size: 16px; }
    
    /* --- ヒーローセクションのスマホ版修正 --- */
    .hero { 
        /* 画像の縦横比に合わせて高さを自動調整 */
        height: auto;
        min-height: 50vh;
        width: 100vw;
        margin-left: calc(50% - 50vw);
        margin-right: calc(50% - 50vw);
        margin-bottom: 30px; /* ヒーローとoverviewセクションの間の余白を狭く */
    }
    
    .hero__image-container {
        position: relative; /* absoluteからrelativeに変更 */
        height: auto;
    }
    
    .hero__image {
        width: 100%;
        height: auto; /* 高さを自動に設定 */
        object-fit: contain; /* coverからcontainに変更して全体を表示 */
        max-width: 100%;
        display: block;
    }
    
    /* overviewセクションの上部パディングをスマホ版で調整 */
    .overview.section-bg {
        padding: 50px 0; /* スマホ版では上下パディングを50pxに減らす */
    }
    .overview__box { 
        padding: 30px; /* 上下左右のパディングを調整 */
    }
    
    .judges-panel__header { background-attachment: scroll; padding: 120px 0 100px; }
    .judges-panel__header::before { transform: skewY(-3deg); }
    .judges-panel__body { padding-top: 100px; }
    .judges-panel__body::before { top: -60px; height: 120px; transform: skewY(-3deg); }
    .merits-title__main { font-size: 42px; }
    .merits__title { font-size: 1.2rem; }
    .panel__grid { grid-template-columns: 1fr; }
    .panel__special-judge { max-width: 100%; margin-top: 40px; }
    .merits__grid { grid-template-columns: 1fr; }
    .details__grid { flex-direction: column; gap: 30px; }
    .details__text--date { font-size: 1.5rem; }
    .tickets__grid { grid-template-columns: 1fr; gap: 20px; } /* S席とA席を上下2段組にする (モバイルで全て1列) */
    .tickets__card--vip { transform: scale(1); padding-top: 40px; padding-bottom: 40px; }
    .vip-benefits__title { font-size: 1.4rem; }
    .vip-benefits__grid { grid-template-columns: 1fr; }

    /* SPONSORS SECTION RESPONSIVE */
    .sponsors__grid--diamond,
    .sponsors__grid--platinum,
    .sponsors__grid--gold,
    .sponsors__grid--bronze { /* 全てのグリッドを1列にする */
        grid-template-columns: 1fr;
        max-width: 100%;
        margin-left: auto; /* 中央寄せを維持 */
        margin-right: auto; /* 中央寄せを維持 */
    }
    
    .sponsors__grid--diamond .sponsors__item:nth-child(3) {
        grid-column: 1;
        max-width: 100%;
        margin: 0;
    }

    .sponsors__item {
        padding: 20px; /* モバイル版のデフォルトパディング */
        min-height: auto; /* 高さを自動に */
        
        display: flex;
        align-items: flex-start;
        gap: 15px; /* モバイル版でのmarkとprofileの間の余白を調整 */
    }

    .sponsors__mark {
        width: 72px; /* モバイル版のマークサイズ (60px * 1.2 = 72px) */
    }

    .sponsors__photo-placeholder {
        width: 70px;
        height: 70px;
        margin-bottom: 10px;
    }

    .sponsors__company {
        font-size: 1.1rem;
    }

    .sponsors__person {
        font-size: 0.9rem;
    }

    .sponsors__bio {
        font-size: 0.8rem;
    }

    .sponsors__rank-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }

    .coming-soon-message {
        padding: 50px 30px;
        margin: 30px 20px 0;
    }
    
    .coming-soon-title {
        font-size: 2.8rem;
        margin-bottom: 15px;
        letter-spacing: 2px;
    }
    
    .coming-soon-text {
        font-size: 1.4rem;
    }
}

/* スマホ版調整 */
@media (max-width: 768px) {
    .organizer__card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        width: 100%; /* 親要素（.container）のコンテンツ幅いっぱいに広げる */
        margin: 30px auto 0; /* 中央寄せを維持 */
        padding: 0 20px 20px; /* 左右と下部にパディングを追加し、上部のパディングは削除 */
        padding-top: 30px; /* カード上部のパディングを追加 */
        max-width: none; /* デスクトップのmax-widthをリセット */
        gap: 30px;
    }
    
    .organizer__photo {
        width: 200px; /* 元の画像サイズに戻す */
        height: 200px; /* 元の画像サイズに戻す */
        border-radius: 50%; /* 元の円形に戻す */
        margin-bottom: 20px; /* 写真とテキストの間の余白を維持 */
    }
    
    .organizer__content {
        text-align: center; /* テキストは中央寄せに戻す */
        padding: 0; /* .organizer__cardでパディングを管理するため、ここでは削除 */
        width: auto; /* コンテンツ幅を自動調整 */
    }
    
    .final-cta-intro {
        padding: 80px 0;
        background-attachment: scroll;
    }
    
    .final-cta-intro__title {
        font-size: 2.0rem;
        margin-bottom: 35px;
    }
    
    .final-cta-intro__details {
        padding: 35px 25px;
        margin: 0 10px;
    }
    
    .final-cta-intro__date {
        font-size: 2.8rem;
        margin-bottom: 30px;
        letter-spacing: 2px;
    }
    
    .final-cta-intro__venue-label {
        font-size: 1.3rem;
        margin-bottom: 12px;
    }
    
    .final-cta-intro__venue-name {
        font-size: 2rem;
        margin-bottom: 10px;
    }
    
    .final-cta-intro__venue-access {
        font-size: 1.1rem;
    }
    
    .final-cta-intro__cta {
        margin-top: 40px;
    }
}

/* より小さな画面での調整 */
@media (max-width: 480px) {
    .hero {
        min-height: 40vh;
    }
}