:root {
            /* ベースカラー（重低音イメージ：深みのある紫紺系） */
            --bass-base: #4c1d95;
            --bass-bright: #7c3aed;
            --edgy-brown: #9E5B22;
            --edgy-dark-brown: #4A2B0E;

            --bg-body: #f4f7fa;
            --bg-card: #ffffff;
            --text-main: #334155;
            --text-muted: #64748b;
            --accent-color: #7c3aed;

            /* カードUIソフトシャドウ */
            --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.05), 0 5px 10px rgba(0, 0, 0, 0.01);
            --card-shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.08), 0 10px 20px rgba(0, 0, 0, 0.04);
        }

        body {
            font-family: 'Noto Sans JP', sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            margin: 0;
            padding: 0;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }


        /* --------------------------
           SEO 評価表示
           -------------------------- */
        .seo-rating {
            text-align: center;
            margin-bottom: 2rem;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: #ffffff;
            padding: 0.8rem 1.5rem;
            border-radius: 50px;
            box-shadow: var(--card-shadow);
            width: fit-content;
            margin-inline: auto;
            border: 1px solid rgba(0, 0, 0, 0.03);
            font-size: 0.95rem;
        }

        .rating-stars {
            color: #fbbf24;
            letter-spacing: 0.1em;
            font-size: 1.2rem;
        }

        .rating-score {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* --------------------------
           ヒーローセクション (Slim 25vh)
           -------------------------- */
        .hero-slim {
            position: relative;
            width: 100%;
            height: 25vh;
            min-height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: transparent;
            margin-bottom: 2rem;
        }

        .sound-wave-container {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 1px;
            height: 1px;
            pointer-events: none;
            z-index: 1;
        }

        /* 重低音感を表現する紫系のウェーブ */
        .wave {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) scale(0);
            border-radius: 50%;
            background: transparent;
            box-shadow: 0 0 20px rgba(124, 58, 237, 0.4);
            border: 2px solid rgba(167, 139, 250, 0.6);
            opacity: 0;
            filter: blur(4px);
            animation: bass-drop-epic 4.5s cubic-bezier(0.25, 1, 0.5, 1) infinite;
        }

        .wave:nth-child(1) {
            animation-delay: 0s;
            width: 100px;
            height: 100px;
        }

        .wave:nth-child(2) {
            animation-delay: 0.15s;
            width: 100px;
            height: 100px;
        }

        .wave:nth-child(3) {
            animation-delay: 0.3s;
            width: 100px;
            height: 100px;
            border-style: dashed;
        }

        .wave-huge {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.8) 0%, rgba(76, 29, 149, 0.5) 50%, transparent 80%);
            filter: blur(15px);
            animation: bass-boom 4.5s cubic-bezier(0.1, 0.9, 0.2, 1) infinite;
        }

        .core {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 60px;
            height: 60px;
            background: radial-gradient(circle, #ffffff 0%, #c4b5fd 40%, #4c1d95 100%);
            border-radius: 50%;
            filter: blur(8px);
            transform: translate(-50%, -50%);
            box-shadow: 0 0 40px rgba(124, 58, 237, 0.9);
            animation: core-pulsate 4.5s ease-in-out infinite;
        }

        @keyframes bass-drop-epic {
            0% {
                transform: translate(-50%, -50%) scale(0);
                opacity: 0;
            }

            5% {
                transform: translate(-50%, -50%) scale(0.6);
                opacity: 0.6;
                border-color: rgba(167, 139, 250, 0.8);
                box-shadow: 0 0 20px rgba(124, 58, 237, 0.6);
            }

            10% {
                transform: translate(-50%, -50%) scale(0.4);
                opacity: 0.3;
            }

            15% {
                transform: translate(-50%, -50%) scale(0.9);
                opacity: 0.8;
                border-color: rgba(167, 139, 250, 0.9);
                box-shadow: 0 0 30px rgba(124, 58, 237, 0.8);
            }

            20% {
                transform: translate(-50%, -50%) scale(0.7);
                opacity: 0.4;
            }

            28% {
                transform: translate(-50%, -50%) scale(2.0);
                opacity: 1;
                background: rgba(124, 58, 237, 0.05);
                border: 3px solid var(--edgy-brown);
                box-shadow: 0 0 70px rgba(124, 58, 237, 0.9), inset 0 0 20px var(--edgy-dark-brown);
            }

            45% {
                transform: translate(-50%, -50%) scale(6.0);
                opacity: 0;
                border-width: 1px;
                border-color: rgba(167, 139, 250, 0.2);
                box-shadow: transparent;
            }

            100% {
                transform: translate(-50%, -50%) scale(10.0);
                opacity: 0;
            }
        }

        @keyframes bass-boom {
            0% {
                transform: translate(-50%, -50%) scale(0);
                opacity: 0;
            }

            20% {
                transform: translate(-50%, -50%) scale(0);
                opacity: 0;
            }

            25% {
                transform: translate(-50%, -50%) scale(5.0);
                opacity: 0.9;
            }

            50% {
                transform: translate(-50%, -50%) scale(25.0);
                opacity: 0;
            }

            100% {
                transform: translate(-50%, -50%) scale(30.0);
                opacity: 0;
            }
        }

        @keyframes core-pulsate {
            0% {
                transform: translate(-50%, -50%) scale(1);
                filter: blur(8px);
            }

            5% {
                transform: translate(-50%, -50%) scale(1.2);
                filter: blur(12px);
                box-shadow: 0 0 50px rgba(124, 58, 237, 0.8);
            }

            10% {
                transform: translate(-50%, -50%) scale(0.9);
                filter: blur(6px);
            }

            15% {
                transform: translate(-50%, -50%) scale(1.3);
                filter: blur(15px);
                box-shadow: 0 0 60px rgba(124, 58, 237, 0.9);
            }

            20% {
                transform: translate(-50%, -50%) scale(0.85);
                filter: blur(5px);
            }

            28% {
                transform: translate(-50%, -50%) scale(1.8);
                filter: blur(15px);
                box-shadow: 0 0 80px rgba(124, 58, 237, 1), inset 0 0 20px var(--edgy-brown);
                background: #ffffff;
            }

            50% {
                transform: translate(-50%, -50%) scale(1);
                filter: blur(8px);
                box-shadow: 0 0 40px rgba(124, 58, 237, 0.9);
                background: radial-gradient(circle, #ffffff 0%, #c4b5fd 40%, #4c1d95 100%);
            }

            100% {
                transform: translate(-50%, -50%) scale(1);
                filter: blur(8px);
            }
        }

        .hero-text {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 0 1rem;
            box-sizing: border-box;
            text-align: center;
        }

        /* --------------------------
           コンテナ
           -------------------------- */
        .container {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 1.2rem;
            box-sizing: border-box;
        }

        /* --------------------------
           チャット吹き出し風 導入文
           -------------------------- */
        .intro-text {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 1.5rem 1.5rem 1.2rem;
            margin-bottom: 2rem;
            box-shadow: var(--card-shadow);
            text-align: center;
            border: 1px solid rgba(0, 0, 0, 0.03);
            font-size: 0.95rem;
            line-height: 1.8;
            color: var(--text-main);
        }

        .intro-text::before {
            content: '🔊💥';
            display: block;
            margin-bottom: 0.8rem;
            line-height: 1;
            font-size: 2.5rem;
            filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
        }

        .intro-text p {
            margin: 0;
        }

        /* --------------------------
           アプリ風カードUI (リスト)
           -------------------------- */
        .movie-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            margin-bottom: 3rem;
        }

        /* PC等向けレイアウト */
        @media (min-width: 600px) {
            .movie-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .movie-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-card);
            border-radius: 16px;
            overflow: hidden;
            text-decoration: none;
            color: inherit;
            box-shadow: var(--card-shadow);
            transition: transform 0.3s, box-shadow 0.3s;
            position: relative;
            border: 1px solid rgba(0, 0, 0, 0.03);
        }

        .movie-card:hover,
        .movie-card:focus {
            transform: translateY(-5px);
            box-shadow: var(--card-shadow-hover);
            outline: none;
        }

        /* 重低音イメージの紫グラデーション */
        .card-header {
            background: linear-gradient(135deg, var(--bass-bright), var(--bass-base));
            padding: 1.5rem 1rem;
            color: #fff;
            position: relative;
        }

        .card-badge {
            position: absolute;
            top: 0.5rem;
            right: 0.5rem;
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(4px);
            padding: 0.3rem 0.6rem;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: bold;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .card-badge::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #4ade80;
            border-radius: 50%;
            box-shadow: 0 0 5px #4ade80;
        }

        .card-title {
            font-family: 'M PLUS Rounded 1c', sans-serif;
            font-weight: 800;
            font-size: 1.15rem;
            margin: 0;
            line-height: 1.4;
            margin-top: 1rem;
        }

        .card-body {
            padding: 1.2rem 1rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .card-impression {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* --------------------------
           アクションボタン (ピル型)
           -------------------------- */
        .action-area {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1.5rem;
            margin-bottom: 4rem;
        }

        .pill-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #ffffff !important;
            color: var(--text-main) !important;
            text-decoration: none;
            font-weight: bold;
            font-family: 'M PLUS Rounded 1c', sans-serif;
            font-size: 1.1rem;
            padding: 1rem 2rem;
            border-radius: 50px;
            width: 100%;
            max-width: 320px;
            border: 2px solid #e2e8f0 !important;
            box-shadow: var(--card-shadow) !important;
            transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s, color 0.3s;
            box-sizing: border-box;
        }

        .pill-btn:hover,
        .pill-btn:focus {
            transform: translateY(-3px);
            border-color: var(--accent-color);
            color: var(--accent-color);
            box-shadow: var(--card-shadow-hover);
        }

/* ==========================================================================
   FAQ Section (Accordion)
   ========================================================================== */
.faq-section {
    max-width: 700px;
    margin: 2.5rem auto 1.5rem;
    padding: 0 1rem;
    box-sizing: border-box;
}

.faq-heading {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted, #64748b);
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    text-align: left;
}

.faq-item {
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    overflow: hidden;
    background: #ffffff;
    box-sizing: border-box;
}

.faq-question {
    padding: 0.85rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main, #334155);
    cursor: pointer;
    list-style: none;
    position: relative;
    padding-right: 2.5rem;
    box-sizing: border-box;
    display: block;
    user-select: none;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::after {
    content: '＋';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    color: var(--text-muted, #64748b);
    transition: transform 0.2s ease;
}

.faq-item[open] .faq-question::after {
    content: '－';
}

.faq-answer {
    padding: 0 1rem 1rem;
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--text-muted, #64748b);
    margin: 0;
    box-sizing: border-box;
    word-break: break-word;
}