/* ========================================
   リセット＆基本設定
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* スプラトゥーン風カラーパレット */
    --color-primary: #00d9ff;      /* ターコイズブルー */
    --color-secondary: #ff5c00;    /* オレンジ */
    --color-gold: #ffd700;         /* ゴールド */
    --color-white: #f5f5f5;        /* ホワイト */
    --color-black: #1a1a1a;        /* ブラック */
    --color-pink: #ff1493;         /* ビビッドピンク */
    --color-green: #00ff7f;        /* ビビッドグリーン */
    --color-purple: #9370db;       /* パープル */
    --color-yellow: #ffeb3b;       /* イエロー */
    
    /* グラデーション */
    --gradient-hero: linear-gradient(135deg, var(--color-primary) 0%, #0099cc 100%);
    --gradient-gold: linear-gradient(135deg, #ffd700 0%, #ffb800 100%);
    --gradient-black: linear-gradient(135deg, #2c2c2c 0%, #1a1a1a 100%);
    
    /* シャドウ */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
    
    /* タイミング */
    --timing-fast: 0.2s;
    --timing-normal: 0.3s;
    --timing-slow: 0.5s;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--color-black);
    line-height: 1.7;
    overflow-x: hidden;
    background: #f9f9f9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ========================================
   インクスプラッシュエフェクト
   ======================================== */
.ink-splash {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
    pointer-events: none;
    animation: float 8s ease-in-out infinite;
    z-index: 2;
}

.splash-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-pink), transparent 70%);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.splash-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--color-green), transparent 70%);
    bottom: -150px;
    left: -150px;
    animation-delay: 2s;
}

.splash-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-yellow), transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 4s;
}

.splash-4 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, var(--color-purple), transparent 70%);
    top: -250px;
    left: -250px;
    animation-delay: 1s;
}

.splash-5 {
    width: 550px;
    height: 550px;
    background: radial-gradient(circle, var(--color-secondary), transparent 70%);
    bottom: -200px;
    right: -200px;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -30px) scale(1.1);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.9);
    }
    75% {
        transform: translate(40px, 10px) scale(1.05);
    }
}

/* ========================================
   ヒーローセクション
   ======================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
    overflow: hidden;
    padding: 80px 0;
}

/* ヒーロー背景動画 */
.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    z-index: 0;
    object-fit: cover;
}

/* 動画の上に暗いオーバーレイ */
.hero-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(0, 217, 255, 0.3) 0%,
        rgba(0, 0, 0, 0.5) 50%,
        rgba(0, 153, 204, 0.3) 100%
    );
    z-index: 1;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 100;
}

.logo-wrapper {
    margin-bottom: 40px;
}

.main-logo {
    max-width: 400px;
    margin: 0 auto;
    filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.8)) drop-shadow(0 0 40px rgba(0, 217, 255, 0.6));
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    color: #fff;
    text-shadow: 4px 4px 12px rgba(0, 0, 0, 0.9),
                 0 0 30px rgba(0, 217, 255, 0.5),
                 0 0 60px rgba(0, 217, 255, 0.3);
    margin-bottom: 24px;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 48px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.9),
                 0 0 20px rgba(0, 217, 255, 0.4);
}

.warning-notice {
    margin-top: 32px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    display: inline-block;
    box-shadow: var(--shadow-md);
}

.warning-notice p {
    font-size: 0.95rem;
    color: var(--color-black);
    font-weight: 700;
    margin: 4px 0;
}

/* ========================================
   CTAボタン
   ======================================== */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 20px 40px;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50px;
    transition: all var(--timing-normal) ease;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-lg);
}

.cta-button.primary {
    background: linear-gradient(135deg, #ff1744 0%, #f50057 100%);
    color: #fff;
    border: 3px solid #fff;
    animation: pulse-glow 2s ease-in-out infinite;
}

.cta-button.secondary {
    background: linear-gradient(135deg, #651fff 0%, #3d5afe 100%);
    color: #fff;
    border: 3px solid #fff;
    animation: pulse-glow 2s ease-in-out infinite;
}

.cta-button.final {
    background: linear-gradient(135deg, #ffd700 0%, #ffb800 100%);
    color: #000;
    font-size: 1.5rem;
    padding: 24px 48px;
    border: 4px solid #ff5722;
    animation: pulse-bounce 2s ease-in-out infinite;
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.6), 0 8px 32px rgba(0, 0, 0, 0.3);
}

.button-icon {
    font-size: 1.5em;
}

.button-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left var(--timing-slow) ease;
}

.cta-button:hover {
    transform: translateY(-8px) scale(1.08) rotate(2deg);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
    animation: none;
}

.cta-button:hover .button-shine {
    left: 100%;
}

.cta-button:active {
    transform: translateY(-2px) scale(1.02);
}

/* ボタンアニメーション */
@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(255, 23, 68, 0.6), 0 8px 32px rgba(0, 0, 0, 0.3);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 40px rgba(255, 23, 68, 0.9), 0 12px 40px rgba(0, 0, 0, 0.4);
        transform: scale(1.02);
    }
}

@keyframes pulse-bounce {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    25% {
        transform: translateY(-6px) scale(1.03);
    }
    50% {
        transform: translateY(0) scale(1);
    }
    75% {
        transform: translateY(-3px) scale(1.015);
    }
}

/* ========================================
   セクション共通スタイル
   ======================================== */
section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 24px;
    color: var(--color-black);
    position: relative;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}

.section-title::after {
    content: '';
    display: block;
    margin: 12px auto 0;
    width: 80px;
    height: 6px;
    background: var(--gradient-hero);
    border-radius: 3px;
}

.title-number {
    font-size: 3.5rem;
    color: var(--color-secondary);
    font-family: 'Righteous', cursive;
}

.section-intro {
    font-size: 1.25rem;
    text-align: center;
    color: #555;
    margin-bottom: 64px;
    line-height: 1.8;
}

/* ========================================
   3人の博士セクション
   ======================================== */
.doctors-section {
    background: linear-gradient(180deg, #f9f9f9 0%, #fff 100%);
}

.doctors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 80px;
}

.doctor-card {
    position: relative;
    border-radius: 24px;
    padding: 40px 30px;
    box-shadow: var(--shadow-md);
    transition: all var(--timing-normal) ease;
    overflow: hidden;
}

.white-card {
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
}

.black-card {
    background: var(--gradient-black);
    color: #fff;
}

.gold-card {
    background: var(--gradient-gold);
    color: var(--color-black);
}

.doctor-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 4rem;
    font-weight: 900;
    opacity: 0.15;
    font-family: 'Righteous', cursive;
}

.doctor-image-wrapper {
    margin-bottom: 24px;
    text-align: center;
}

.doctor-image {
    max-width: 200px;
    margin: 0 auto;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

.doctor-title {
    font-size: 1.75rem;
    font-weight: 900;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.doctor-icon {
    font-size: 1.5em;
}

.doctor-type {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 16px;
    opacity: 0.8;
}

.doctor-description {
    font-size: 1rem;
    line-height: 1.7;
}

.card-splash {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    opacity: 0.1;
    pointer-events: none;
}

.white-splash {
    background: radial-gradient(circle, var(--color-primary), transparent 70%);
    bottom: -100px;
    right: -100px;
}

.black-splash {
    background: radial-gradient(circle, var(--color-purple), transparent 70%);
    top: -100px;
    left: -100px;
}

.gold-splash {
    background: radial-gradient(circle, var(--color-secondary), transparent 70%);
    bottom: -100px;
    left: -100px;
}

.doctor-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* 3人の博士集合画像（SNSセクション内） */
.doctors-group {
    text-align: center;
    margin: 48px auto 64px;
}

.group-image {
    max-width: 700px;
    width: 100%;
    margin: 0 auto;
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.3);
    transition: all var(--timing-normal) ease;
    border: 3px solid rgba(255, 255, 255, 0.5);
}

.group-image:hover {
    transform: scale(1.03) translateY(-4px);
    box-shadow: 0 16px 48px rgba(255, 255, 255, 0.5);
    border-color: #fff;
}

/* ========================================
   動画セクション
   ======================================== */
.video-section {
    background: linear-gradient(180deg, #fff 0%, #f0f0f0 100%);
}

.video-wrapper {
    max-width: 900px;
    margin: 0 auto 48px;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
}

/* YouTube Shortsサムネイル表示 */
.shorts-video-container {
    max-width: 400px;
    margin: 0 auto;
}

.shorts-thumbnail {
    position: relative;
    width: 100%;
    aspect-ratio: 9 / 16;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all var(--timing-normal) ease;
}

.shorts-thumbnail:hover {
    transform: scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.shorts-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.shorts-play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    transition: all var(--timing-normal) ease;
}

.shorts-thumbnail:hover .shorts-play-button {
    transform: translate(-50%, -50%) scale(1.1);
}

.shorts-play-button svg {
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}

.shorts-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(0, 0, 0, 0.8);
    padding: 8px 12px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    z-index: 2;
}

.shorts-badge svg {
    display: block;
}

.shorts-label {
    text-align: center;
    margin-top: 16px;
    font-size: 1rem;
    font-weight: 700;
    color: #ff0000;
    background: rgba(255, 255, 255, 0.95);
    display: inline-block;
    padding: 8px 20px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
}

.shorts-view-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: #ff0000;
    color: #fff;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1.05rem;
    margin-top: 20px;
    transition: all var(--timing-normal) ease;
    box-shadow: 0 4px 12px rgba(255, 0, 0, 0.3);
}

.shorts-view-button:hover {
    background: #cc0000;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(255, 0, 0, 0.5);
}

.shorts-view-button i {
    font-size: 1.2em;
}

.video-cta {
    text-align: center;
    margin-top: 48px;
}

.video-cta-text {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--color-black);
}

/* ========================================
   学べる内容セクション（アコーディオン）
   ======================================== */
.learning-section {
    background: linear-gradient(180deg, #f0f0f0 0%, #fff 100%);
}

.learning-accordion {
    max-width: 900px;
    margin: 0 auto;
}

.accordion-item {
    background: #fff;
    border-radius: 16px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--timing-normal) ease;
}

.accordion-item:hover {
    box-shadow: var(--shadow-md);
}

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 28px;
    background: #fff;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: all var(--timing-normal) ease;
    position: relative;
}

.accordion-header:hover {
    background: #f8f8f8;
}

.accordion-header.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, #0099cc 100%);
    color: #fff;
}

.accordion-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.accordion-title {
    flex: 1;
    font-size: 1.35rem;
    font-weight: 700;
}

.accordion-arrow {
    font-size: 1.2rem;
    transition: transform var(--timing-normal) ease;
    flex-shrink: 0;
}

.accordion-header.active .accordion-arrow {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
    padding: 0 28px;
}

.accordion-content.active {
    max-height: 2000px;
    padding: 0 28px 28px;
}

.accordion-subtitle {
    font-size: 1rem;
    color: #666;
    margin-bottom: 20px;
    font-weight: 500;
}

.accordion-text {
    font-size: 1rem;
    line-height: 1.8;
    color: #333;
}

.accordion-text p {
    margin-bottom: 16px;
}

.accordion-text strong {
    color: var(--color-primary);
    font-weight: 700;
}

.accordion-text .highlight {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1), rgba(0, 153, 204, 0.1));
    padding: 16px;
    border-radius: 12px;
    border-left: 4px solid var(--color-primary);
    margin-top: 20px;
    font-weight: 600;
}

.accordion-text .highlight.warning {
    background: linear-gradient(135deg, rgba(255, 87, 34, 0.1), rgba(255, 23, 68, 0.1));
    border-left-color: #ff5722;
    color: #d32f2f;
}

/* ルールボックス・テーブル */
.rule-box {
    background: #f8f9fa;
    border: 2px solid var(--color-primary);
    border-radius: 12px;
    padding: 20px;
    margin: 20px 0;
}

.rule-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
    font-size: 0.95rem;
}

.rule-table th {
    background: linear-gradient(135deg, var(--color-primary), #0099cc);
    color: #fff;
    padding: 12px;
    text-align: left;
    font-weight: 700;
}

.rule-table td {
    padding: 12px;
    border-bottom: 1px solid #e0e0e0;
}

.rule-table tr:last-child td {
    border-bottom: none;
}

.rule-table tr:nth-child(even) {
    background: #f8f9fa;
}

.rule-table tr:hover {
    background: rgba(0, 217, 255, 0.05);
}

/* ヒントボックス */
.tip-box {
    background: linear-gradient(135deg, rgba(255, 235, 59, 0.1), rgba(255, 193, 7, 0.1));
    border-left: 4px solid #ffc107;
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
}

.tip-box p {
    margin: 8px 0;
    font-size: 0.95rem;
}

.learning-note {
    text-align: center;
    margin-top: 48px;
    font-size: 1rem;
    color: #666;
    font-weight: 500;
}

/* ビジュアルボックス */
.visual-box {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.05), rgba(0, 153, 204, 0.05));
    border: 2px solid var(--color-primary);
    border-radius: 12px;
    padding: 20px;
    margin: 20px 0;
}

/* カード値のグリッド */
.card-value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.card-item {
    text-align: center;
    background: #fff;
    padding: 16px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.card-display {
    font-size: 2.5rem;
    margin-bottom: 8px;
}

.card-label {
    font-size: 0.95rem;
    color: #666;
}

/* ゲームフロー */
.game-flow {
    margin: 24px 0;
}

.flow-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
}

.flow-step {
    background: #fff;
    border: 3px solid var(--color-primary);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    min-width: 140px;
    box-shadow: var(--shadow-sm);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--gradient-hero);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 900;
    margin: 0 auto 12px;
}

.step-content {
    font-size: 0.9rem;
    line-height: 1.6;
}

.flow-arrow {
    font-size: 2rem;
    color: var(--color-primary);
    font-weight: 900;
}

/* 記号グリッド */
.symbol-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.symbol-item {
    text-align: center;
    padding: 16px;
    background: #fff;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.symbol-circle {
    font-size: 3rem;
    margin-bottom: 8px;
}

/* 罫線ボックス */
.roadmap-box {
    background: #f8f9fa;
    border: 2px solid #0099cc;
    border-radius: 12px;
    padding: 20px;
    margin: 20px 0;
}

.pattern-example {
    margin: 20px 0;
    padding: 16px;
    background: #fff;
    border-radius: 8px;
}

.roadmap-grid {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 12px 0;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
}

.roadmap-grid.dragon {
    justify-content: flex-start;
}

.road-item {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.pattern-note {
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
    margin-top: 8px;
}

/* モバイル対応 */
@media (max-width: 768px) {
    .rule-table {
        font-size: 0.85rem;
    }
    
    .rule-table th,
    .rule-table td {
        padding: 8px;
    }
    
    .card-value-grid {
        grid-template-columns: 1fr;
    }
    
    .flow-steps {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    
    .symbol-grid {
        grid-template-columns: 1fr;
    }
    
    .roadmap-grid {
        gap: 6px;
    }
    
    .road-item {
        width: 35px;
        height: 35px;
        font-size: 1.2rem;
    }
}

/* ========================================
   おすすめセクション
   ======================================== */
.recommend-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, #0099cc 100%);
    color: #fff;
}

.recommend-section .section-title {
    color: #fff;
}

.recommend-section .section-title::after {
    background: #fff;
}

.recommend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.recommend-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 32px 20px;
    border-radius: 20px;
    text-align: center;
    transition: all var(--timing-normal) ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.recommend-emoji {
    font-size: 3.5rem;
    margin-bottom: 16px;
}

.recommend-item p {
    font-size: 1.1rem;
    font-weight: 700;
}

.recommend-item:hover {
    transform: translateY(-6px) scale(1.05);
    background: rgba(255, 255, 255, 0.25);
    border-color: #fff;
}

/* ========================================
   安全対策セクション
   ======================================== */
.safety-section {
    background: linear-gradient(180deg, #fff 0%, #f9f9f9 100%);
}

.safety-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.safety-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: #fff;
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: all var(--timing-normal) ease;
    border-left: 4px solid var(--color-green);
}

.checkmark {
    font-size: 1.5rem;
    color: var(--color-green);
    flex-shrink: 0;
}

.safety-item p {
    font-size: 1rem;
    color: var(--color-black);
    line-height: 1.6;
}

.safety-item:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
}

.safety-note {
    text-align: center;
    margin-top: 48px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-green);
}

/* ========================================
   SNSセクション
   ======================================== */
.sns-section {
    background: linear-gradient(135deg, #9370db 0%, #7b68ee 100%);
    color: #fff;
}

.sns-section .section-title {
    color: #fff;
}

.sns-section .section-title::after {
    background: #fff;
}

.sns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

.sns-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: all var(--timing-normal) ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

/* SNS固有カラー */
.line-card:hover {
    background: rgba(0, 195, 0, 0.3);
    border-color: #00C300;
}

.linklit-card:hover {
    background: rgba(59, 89, 152, 0.3);
    border-color: #3b5998;
}

.instagram-card:hover {
    background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
    background: rgba(225, 48, 108, 0.3);
    border-color: #E1306C;
}

.tiktok-card:hover {
    background: rgba(0, 0, 0, 0.3);
    border-color: #000;
}

.sns-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

/* Font Awesomeアイコンのカラー */
.line-icon {
    width: 80px;
    height: 80px;
    background: #00C300;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 4px 12px rgba(0, 195, 0, 0.3);
}

.line-icon i {
    color: #fff;
    font-size: 3rem;
}

.linklit-icon {
    color: #3b5998;
}

.instagram-icon {
    background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tiktok-icon {
    color: #000;
}

/* LINEリンクボタン */
.sns-link-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: #00C300;
    color: #fff;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1rem;
    margin-top: 16px;
    transition: all var(--timing-normal) ease;
    box-shadow: 0 4px 12px rgba(0, 195, 0, 0.3);
}

.sns-link-button:hover {
    background: #00A300;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 195, 0, 0.5);
}

.sns-link-button i {
    font-size: 0.9em;
}

.sns-card h3 {
    font-size: 1.75rem;
    font-weight: 900;
    margin-bottom: 16px;
}

.search-instruction {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 8px;
}

.search-keyword {
    font-size: 1.1rem;
    font-weight: 700;
    background: rgba(255, 255, 255, 0.2);
    padding: 12px 20px;
    border-radius: 12px;
    display: inline-block;
    margin-top: 8px;
}

.sns-card:hover {
    transform: translateY(-12px) scale(1.08) rotate(-2deg);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

.sns-note {
    text-align: center;
    margin-top: 48px;
    font-size: 0.95rem;
    opacity: 0.9;
}

/* ========================================
   最終CTAセクション
   ======================================== */
.final-cta-section {
    position: relative;
    background: var(--gradient-gold);
    padding: 120px 0;
    overflow: hidden;
}

.final-cta-content {
    text-align: center;
    position: relative;
    z-index: 10;
}

.final-cta-title {
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-black);
    margin-bottom: 32px;
    text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.5);
}

.final-cta-text {
    font-size: 1.35rem;
    color: var(--color-black);
    margin-bottom: 48px;
    line-height: 1.9;
    font-weight: 500;
}

.final-cta-subtext {
    margin-top: 32px;
    font-size: 1.1rem;
    color: var(--color-black);
    font-weight: 700;
}

/* ========================================
   フッター
   ======================================== */
.footer {
    background: var(--color-black);
    color: #fff;
    padding: 60px 0 40px;
    text-align: center;
}

.footer-text {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.footer-copyright {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 32px;
}

/* フッターの警告ボックス */
.footer-warning {
    background: rgba(255, 87, 34, 0.2);
    border: 2px solid #ff5722;
    border-radius: 16px;
    padding: 24px;
    margin: 32px auto;
    max-width: 600px;
}

.footer-warning p {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 8px 0;
    color: #ffeb3b;
}

.footer-disclaimer {
    font-size: 0.85rem;
    line-height: 1.8;
    margin-top: 24px;
    opacity: 0.7;
}

/* ========================================
   アニメーション
   ======================================== */
@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.5);
    }
    60% {
        opacity: 1;
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.animate-bounce-in {
    animation: bounceIn 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.animate-slide-up {
    animation: slideUp 0.8s ease-out;
}

.animate-slide-up.delay-1 {
    animation-delay: 0.2s;
    opacity: 0;
    animation-fill-mode: forwards;
}

.animate-slide-up.delay-2 {
    animation-delay: 0.4s;
    opacity: 0;
    animation-fill-mode: forwards;
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

.animate-fade-in.delay-3 {
    animation-delay: 0.6s;
    opacity: 0;
    animation-fill-mode: forwards;
}

/* スクロールアニメーション用 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease-out;
}

.scroll-reveal.delay-1 {
    transition-delay: 0.2s;
}

.scroll-reveal.delay-2 {
    transition-delay: 0.4s;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   レスポンシブデザイン
   ======================================== */
@media (max-width: 768px) {
    .sp-only {
        display: inline;
    }
    
    .hero-title {
        font-size: 2rem;
        padding: 0 15px;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        padding: 0 15px;
    }
    
    .main-logo {
        max-width: 280px;
    }
    
    .section-title {
        font-size: 1.6rem;
        padding: 0 15px;
        line-height: 1.5;
        word-break: keep-all;
        overflow-wrap: break-word;
    }
    
    .title-number {
        font-size: 2.5rem;
    }
    
    .section-intro {
        font-size: 1.05rem;
        padding: 0 15px;
    }
    
    .doctors-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .cta-button {
        padding: 16px 32px;
        font-size: 1.05rem;
    }
    
    .cta-button.final {
        font-size: 1.2rem;
        padding: 18px 36px;
    }
    
    .group-image {
        max-width: 100%;
        border-radius: 16px;
    }
    
    .final-cta-title {
        font-size: 2rem;
    }
    
    .final-cta-text {
        font-size: 1.1rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .ink-splash {
        opacity: 0.05;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .video-wrapper {
        padding: 0 15px;
    }
}

@media (min-width: 769px) {
    .sp-only {
        display: none;
    }
}