/* タイムラインアイテムはアニメーションなし */
.timeline-item.animate {
    animation: none;
}

/* フェードアップアニメーションは削除
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
*//* 幕が開くようなアニメーション */
@keyframes curtainReveal {
    0% {
        transform: scaleX(1.2);
        background-position: 0% 0%;
    }
    50% {
        transform: scaleX(1);
        background-position: 100% 0%;
    }
    100% {
        transform: scaleX(1.2);
        background-position: 0% 0%;
    }
}/* About Page Specific Styles */
.about-hero {
    padding-top: 170px;
    margin-bottom: 120px;
    position: relative;
    overflow: hidden;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(255, 165, 0, 0.05) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: -1;
}

.about-hero h1 {
    font-size: 72px;
    font-weight: 300;
    letter-spacing: 6px;
    margin-bottom: 60px;
    text-align: center;
    position: relative;
}

.about-hero h1::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background-color: rgba(255, 165, 0, 0.6);
}

.about-hero-text {
    font-size: 22px;
    line-height: 2.2;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    font-weight: 300;
    letter-spacing: 1px;
}

.about-hero-text p {
    padding: 0 20px;
}

.about-section {
    padding: 120px 10%;
    position: relative;
    background-color: rgba(10, 10, 10, 0.8);
    border-radius: 5px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
    margin: 0 5%;
}

.about-title {
    font-size: 36px;
    margin-bottom: 60px;
    font-weight: 300;
    letter-spacing: 3px;
    text-align: center;
    position: relative;
}

.about-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background-color: rgba(255, 165, 0, 0.6);
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 80px;
    margin-bottom: 80px;
}

.about-info {
    flex: 1;
    min-width: 320px;
}

.about-info p {
    margin-bottom: 30px;
    line-height: 2;
}

.about-info-table {
    width: 100%;
    border-collapse: collapse;
}

.about-info-table tr {
    border-bottom: 1px solid rgba(80, 80, 80, 0.5);
}

.about-info-table th,
.about-info-table td {
    padding: 24px 10px;
    text-align: left;
    vertical-align: top;
}

.about-info-table th {
    width: 25%;
    font-weight: normal;
    color: rgba(255, 165, 0, 0.8);
    letter-spacing: 1px;
    font-size: 15px;
}

.about-info-table td {
    font-weight: 300;
    letter-spacing: 0.5px;
    line-height: 1.8;
}

.history-timeline {
    flex: 1;
    min-width: 320px;
    position: relative;
}

.history-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 10px;
    left: 40px;
    width: 1px;
    background: linear-gradient(to bottom, rgba(255, 165, 0, 0.1), rgba(255, 165, 0, 0.8));
}

.timeline-item {
    margin-bottom: 60px;
    position: relative;
    padding-left: 80px;
    opacity: 1; /* 常に表示 */
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 36px;
    top: 10px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background-color: rgba(255, 165, 0, 0.8);
    box-shadow: 0 0 15px rgba(255, 165, 0, 0.6);
}

.timeline-year {
    font-size: 22px;
    margin-bottom: 15px;
    color: rgba(255, 165, 0, 0.9);
    font-weight: 500;
}

.timeline-desc {
    margin-bottom: 8px;
    line-height: 1.8;
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* シネマティックなミッションセクション */
.mission-section {
    height: 100vh;
    padding: 0;
    position: relative;
    overflow: hidden;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 筆文字を引き立てる背景の流れる墨効果 */
.mission-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(20, 20, 20, 0.5) 0%, rgba(0, 0, 0, 1) 80%);
    z-index: 1;
    animation: subtle-pulse 8s ease-in-out infinite;
}

@keyframes subtle-pulse {
    0%, 100% {
        opacity: 0.8;
    }
    50% {
        opacity: 1;
    }
}

/* 上から下へ流れる墨のような効果 */
.ink-flow {
    position: absolute;
    top: -10%;
    left: 0;
    width: 100%;
    height: 120%;
    background: linear-gradient(to bottom, 
        rgba(0, 0, 0, 0) 0%, 
        rgba(0, 0, 0, 0.2) 20%, 
        rgba(0, 0, 0, 0) 40%, 
        rgba(0, 0, 0, 0.1) 60%, 
        rgba(0, 0, 0, 0) 80%);
    opacity: 0;
    z-index: 2;
    animation: ink-animation 15s ease-in-out infinite;
    transform: translateY(-100%);
}

.ink-flow.animate {
    opacity: 0.7;
}

@keyframes ink-animation {
    0% {
        transform: translateY(-100%) scaleX(1);
    }
    100% {
        transform: translateY(100%) scaleX(1.1);
    }
}

/* アクセントとなる白い線を削除 */
/* .accent-line {
    position: absolute;
    width: 1px;
    height: 30vh;
    background: linear-gradient(to bottom, 
        rgba(255, 255, 255, 0) 0%, 
        rgba(255, 255, 255, 0.7) 50%, 
        rgba(255, 255, 255, 0) 100%);
    top: 35%;
    opacity: 0;
    z-index: 3;
    transition: opacity 1s ease;
}

.accent-line:nth-child(1) {
    left: 25%;
    height: 40vh;
}

.accent-line:nth-child(2) {
    left: 75%;
    height: 35vh;
    animation-delay: 0.5s;
}

.accent-line.animate {
    opacity: 0.3;
    animation: line-appear 3s ease-in-out forwards;
}

@keyframes line-appear {
    0% {
        opacity: 0;
        transform: scaleY(0);
    }
    100% {
        opacity: 0.3;
        transform: scaleY(1);
    }
} */

/* 映画の幕開けのような背景エフェクト */
.mission-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        rgba(0, 0, 0, 1) 0%, 
        rgba(0, 0, 0, 0.7) 20%, 
        rgba(0, 0, 0, 0.5) 40%, 
        rgba(0, 0, 0, 0.7) 60%, 
        rgba(0, 0, 0, 1) 100%);
    opacity: 1;
    z-index: 1;
    animation: curtainReveal 8s ease-in-out infinite;
}

/* 光の筋演出 */
.light-beam {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 165, 0, 0) 20%, 
        rgba(255, 165, 0, 0.05) 30%, 
        rgba(255, 165, 0, 0.2) 50%, 
        rgba(255, 165, 0, 0.05) 70%, 
        rgba(255, 165, 0, 0) 80%, 
        transparent 100%);
    z-index: 2;
    transform: skewX(-20deg);
    animation: lightBeam 10s ease-in-out infinite;
}

@keyframes lightBeam {
    0% {
        left: -150%;
        opacity: 0;
    }
    30% {
        opacity: 0.1;
    }
    50% {
        left: 100%;
        opacity: 0.5;
    }
    51% {
        opacity: 0;
    }
    100% {
        left: 100%;
        opacity: 0;
    }
}

/* 映画のグレインエフェクト */
.mission-section {
    position: relative;
}

.mission-grain {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMDAiIGhlaWdodD0iMzAwIj48ZmlsdGVyIGlkPSJhIiB4PSIwIiB5PSIwIj48ZmVUdXJidWxlbmNlIHR5cGU9ImZyYWN0YWxOb2lzZSIgYmFzZUZyZXF1ZW5jeT0iLjc1IiBzdGl0Y2hUaWxlcz0ic3RpdGNoIi8+PGZlQ29sb3JNYXRyaXggdHlwZT0ic2F0dXJhdGUiIHZhbHVlcz0iMCIvPjwvZmlsdGVyPjxyZWN0IHdpZHRoPSIzMDAiIGhlaWdodD0iMzAwIiBmaWx0ZXI9InVybCgjYSkiIG9wYWNpdHk9Ii4wNSIvPjwvc3ZnPg==');
    opacity: 0.25;
    z-index: 3;
    pointer-events: none;
    animation: grainAnimation 8s steps(10) infinite;
}

/* 紙のテクスチャを追加 */
.paper-texture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyMDAiIGhlaWdodD0iMjAwIj48ZmlsdGVyIGlkPSJwIiB4PSIwIiB5PSIwIj48ZmVUdXJidWxlbmNlIHR5cGU9ImZyYWN0YWxOb2lzZSIgYmFzZUZyZXF1ZW5jeT0iMC4wMSIgbnVtT2N0YXZlcz0iNSIvPjxmZUNvbG9yTWF0cml4IHR5cGU9Im1hdHJpeCIgdmFsdWVzPSIwIDAgMCAwIDEgMCAwIDAgMCAxIDAgMCAwIDAgMSAwIDAgMCAwLjA1IDAiLz48L2ZpbHRlcj48cmVjdCB3aWR0aD0iMjAwIiBoZWlnaHQ9IjIwMCIgZmlsdGVyPSJ1cmwoI3ApIi8+PC9zdmc+');
    opacity: 0.05;
    z-index: 4;
    pointer-events: none;
}

@keyframes grainAnimation {
    0% { transform: translate(0, 0); }
    10% { transform: translate(-5%, -5%); }
    20% { transform: translate(10%, 5%); }
    30% { transform: translate(-5%, 10%); }
    40% { transform: translate(5%, -10%); }
    50% { transform: translate(-10%, 5%); }
    60% { transform: translate(10%, 10%); }
    70% { transform: translate(0%, -5%); }
    80% { transform: translate(-5%, 0%); }
    90% { transform: translate(5%, 5%); }
    100% { transform: translate(0, 0); }
}

.mission-text-container {
    position: relative;
    z-index: 10;
    text-align: center;
    opacity: 0;
    animation: fadeIn 1s ease-out forwards;
    animation-delay: 0.3s;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

.mission-subtitle {
    font-size: 24px;
    font-weight: 300;
    letter-spacing: 10px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(20px);
    animation: none; /* 初期状態ではアニメーションなし */
}

.mission-subtitle.animate {
    animation: subtitleAppear 2s ease forwards;
}

/* サブタイトルのシンプルな登場アニメーション */
@keyframes subtitleAppear {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.mission-image-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.5s ease, transform 0.8s cubic-bezier(0.215, 0.61, 0.355, 1);
    z-index: 10;
}

.mission-image-container.animate {
    opacity: 1;
    transform: scale(1);
}

.mission-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    filter: brightness(1.05) contrast(1.1) drop-shadow(0 0 15px rgba(255, 255, 255, 0.4));
}

.mission-image.reveal-completed {
    animation: textReveal 0.8s ease-out forwards, imagePulse 5s ease-in-out infinite alternate;
}

@keyframes textReveal {
    0% {
        filter: brightness(1.05) contrast(1.1) blur(5px) drop-shadow(0 0 15px rgba(255, 255, 255, 0.4));
    }
    100% {
        filter: brightness(1.2) contrast(1.2) drop-shadow(0 0 25px rgba(255, 255, 255, 0.6));
    }
}

@keyframes imagePulse {
    0% {
        filter: brightness(1.2) contrast(1.2) drop-shadow(0 0 25px rgba(255, 255, 255, 0.6));
    }
    100% {
        filter: brightness(1.3) contrast(1.3) drop-shadow(0 0 30px rgba(255, 255, 255, 0.8));
    }
}

/* 金属光沢のようなシャイン効果 */
@keyframes titleShine {
    0% {
        background-position: 0% 50%;
        text-shadow: 0 0 30px rgba(255, 165, 0, 0.5);
    }
    50% {
        background-position: 100% 50%;
        text-shadow: 0 0 50px rgba(255, 165, 0, 0.8), 0 0 80px rgba(255, 165, 0, 0.4);
    }
    100% {
        background-position: 0% 50%;
        text-shadow: 0 0 30px rgba(255, 165, 0, 0.5);
    }
}

/* レンズフレアエフェクト */
.mission-title::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -150%;
    width: 400%;
    height: 1px;
    background: linear-gradient(90deg, 
        rgba(255, 165, 0, 0) 0%, 
        rgba(255, 165, 0, 0.3) 25%, 
        rgba(255, 165, 0, 0.7) 50%, 
        rgba(255, 165, 0, 0.3) 75%, 
        rgba(255, 165, 0, 0) 100%);
    animation: lensFlare 5s ease-in-out 6s infinite;
    z-index: -1;
}

@keyframes lensFlare {
    0% {
        transform: translateX(-30%) scaleY(1);
        opacity: 0;
    }
    10% {
        opacity: 0.7;
    }
    50% {
        transform: translateX(0%) scaleY(3);
        opacity: 1;
    }
    90% {
        opacity: 0.7;
    }
    100% {
        transform: translateX(30%) scaleY(1);
        opacity: 0;
    }
}

/* シネマティックオーバーレイ効果 */
.cinematic-flare {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: radial-gradient(circle at center, rgba(255, 165, 0, 0) 0%, rgba(255, 165, 0, 0.1) 50%, rgba(255, 165, 0, 0) 100%);
    opacity: 0;
    z-index: 5;
    animation: flareEffect 4s ease-in-out infinite;
}

@keyframes flareEffect {
    0%, 100% {
        opacity: 0;
        transform: scale(0.8);
    }
    50% {
        opacity: 0.4;
        transform: scale(1.2);
    }
}

/* シンプルなビネット効果 */
.vignette-effect {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 30%, rgba(0, 0, 0, 0.9) 100%);
    z-index: 5;
    pointer-events: none;
    opacity: 0.8;
}

/* タイトルがフォーカスされる効果 */
.mission-title.focus-in {
    animation: titleFocus 2s ease-in-out forwards;
}

@keyframes titleFocus {
    0% {
        filter: blur(3px);
        transform: scale(0.98);
    }
    100% {
        filter: blur(0);
        transform: scale(1);
    }
}

/* レスポンシブ対応 */
@media (max-width: 1200px) {
    .mission-title {
        font-size: 100px;
    }
    
    .mission-subtitle {
        font-size: 20px;
        letter-spacing: 8px;
    }
}

@media (max-width: 992px) {
    .about-content {
        gap: 60px;
    }
    
    .mission-title {
        font-size: 80px;
    }
    
    .mission-subtitle {
        font-size: 18px;
        letter-spacing: 6px;
        margin-bottom: 20px;
    }
}

@media (max-width: 768px) {
    .about-hero {
        padding-top: 120px;
        margin-bottom: 80px;
    }
    
    .about-hero h1 {
        font-size: 54px;
        margin-bottom: 40px;
    }
    
    .about-hero-text {
        font-size: 18px;
        line-height: 2;
    }
    
    .about-section {
        padding: 80px 5%;
    }
    
    .about-title {
        font-size: 30px;
        margin-bottom: 40px;
    }
    
    .mission-title {
        font-size: 60px;
        letter-spacing: 6px;
    }
    
    .mission-subtitle {
        font-size: 16px;
        letter-spacing: 5px;
        margin-bottom: 15px;
    }
    
    @keyframes fadeInSubtitle {
        0% {
            opacity: 0;
            transform: translateZ(30px) translateY(15px);
            letter-spacing: 3px;
        }
        100% {
            opacity: 1;
            transform: translateZ(30px) translateY(0);
            letter-spacing: 5px;
        }
    }
    
    @keyframes titleReveal {
        0% {
            opacity: 0;
            transform: translateZ(0) scale(0.8);
            filter: blur(8px);
        }
        50% {
            opacity: 0.7;
            transform: translateZ(50px) scale(1.1);
            filter: blur(2px);
        }
        100% {
            opacity: 1;
            transform: translateZ(40px) scale(1);
            filter: blur(0);
        }
    }
}

@media (max-width: 576px) {
    .about-hero h1 {
        font-size: 42px;
    }
    
    .about-hero-text {
        font-size: 16px;
    }
    
    .about-info-table th {
        width: 35%;
    }
    
    .timeline-item {
        padding-left: 60px;
    }
    
    .history-timeline::before {
        left: 30px;
    }
    
    .timeline-item::before {
        left: 26px;
    }
    
    .mission-title {
        font-size: 40px;
        letter-spacing: 4px;
    }
    
    .mission-subtitle {
        font-size: 14px;
        letter-spacing: 3px;
        margin-bottom: 10px;
    }
    
    @keyframes fadeInSubtitle {
        0% {
            opacity: 0;
            transform: translateZ(20px) translateY(10px);
            letter-spacing: 1px;
        }
        100% {
            opacity: 1;
            transform: translateZ(20px) translateY(0);
            letter-spacing: 3px;
        }
    }
}