:root {
            /* ベースカラー */
            --dolby-base: #0033aa;
            --dolby-bright: #0088ff;
            --edgy-brown: #9E5B22;
            --edgy-dark-brown: #4A2B0E;

            --bg-body: #f4f7fa;
            --bg-card: #ffffff;
            --text-main: #334155;
            --text-muted: #64748b;
            --accent-color: #0ea5e9;

            /* 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;
        }

        a {
            color: var(--accent-color);
            text-decoration: none;
            transition: color 0.2s;
        }

        a:hover {
            color: var(--dolby-bright);
        }

        /* --------------------------
           ヒーローセクション (Hero 1 採用)
           -------------------------- */
        .hero {
            position: relative;
            width: 100%;
            height: 40vh;
            min-height: 250px;
            max-height: 600px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: transparent;
            /* 背景色との境目を消すため透明化（ボディ背景に依存） */
            box-sizing: border-box;
            /* シャドウも削除しフラットに継ぎ接ぎする */
            margin-bottom: 1rem;
        }

        .sound-wave-container {
            position: absolute;
            top: 40%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 1px;
            height: 1px;
            pointer-events: none;
            z-index: 1;
        }

        .wave {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) scale(0);
            border-radius: 50%;
            background: transparent;
            box-shadow: 0 0 20px rgba(0, 136, 255, 0.4);
            border: 2px solid rgba(102, 178, 255, 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(0, 136, 255, 0.8) 0%, rgba(0, 51, 170, 0.5) 50%, transparent 80%);
            filter: blur(15px);
            animation: bass-boom 4.5s cubic-bezier(0.1, 0.9, 0.2, 1) 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(102, 178, 255, 0.8);
                box-shadow: 0 0 20px rgba(0, 136, 255, 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(102, 178, 255, 0.9);
                box-shadow: 0 0 30px rgba(0, 136, 255, 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(0, 136, 255, 0.05);
                border: 3px solid var(--edgy-brown);
                box-shadow: 0 0 70px rgba(0, 136, 255, 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(102, 178, 255, 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;
            }
        }

        .core {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 80px;
            height: 80px;
            background: radial-gradient(circle, #ffffff 0%, #66b2ff 40%, #0033aa 100%);
            border-radius: 50%;
            filter: blur(8px);
            transform: translate(-50%, -50%);
            box-shadow: 0 0 40px rgba(0, 136, 255, 0.9);
            animation: core-pulsate 4.5s ease-in-out infinite;
        }

        @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(0, 136, 255, 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(0, 136, 255, 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(0, 136, 255, 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(0, 136, 255, 0.9);
                background: radial-gradient(circle, #ffffff 0%, #66b2ff 40%, #0033aa 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;
        }

        .hero-text .highlight {
            color: var(--dolby-base);
            font-size: 1.6em;
            margin: 0 0.05em;
            line-height: 0.8;
            padding-bottom: 0.05em;
            text-shadow: 0 0 15px rgba(255, 255, 255, 1), 0 0 25px rgba(102, 178, 255, 0.5);
        }

        /* --------------------------
           メインコンテンツ構成
           -------------------------- */
        .container {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* セクションヘッダー */
        .section-title {
            font-family: 'M PLUS Rounded 1c', sans-serif;
            font-size: 1.4rem;
            color: var(--dolby-base);
            text-align: center;
            margin: 3rem 0 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.8rem;
        }

        .section-title::before,
        .section-title::after {
            content: '';
            display: inline-block;
            width: 40px;
            height: 3px;
            background: linear-gradient(90deg, var(--dolby-bright), var(--dolby-base));
            border-radius: 2px;
        }

        /* --------------------------
           ピルシェイプ検索バー
           -------------------------- */
        .search-area-hint {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0.8rem;
            font-weight: bold;
        }

        .search-wrapper {
            background: var(--bg-card);
            border-radius: 50px;
            padding: 0.5rem;
            box-shadow: var(--card-shadow);
            margin: 0 auto 3rem;
            max-width: 600px;
            border: 1px solid rgba(0, 0, 0, 0.03);
            transition: box-shadow 0.3s;
        }

        .search-wrapper:focus-within {
            box-shadow: var(--card-shadow-hover);
        }

        .search-wrapper form {
            display: flex;
            flex-wrap: nowrap;
            gap: 0.5rem;
            align-items: center;
        }

        .search-wrapper select,
        .search-wrapper input {
            border: 1px solid #e2e8f0;
            border-radius: 25px;
            padding: 0.8rem 1.2rem;
            font-size: 1rem;
            font-family: 'Noto Sans JP', sans-serif;
            outline: none;
            transition: border-color 0.2s;
        }

        .search-wrapper select:focus,
        .search-wrapper input:focus {
            border-color: var(--accent-color);
        }

        .search-wrapper select {
            flex: 0 0 110px;
            background-color: #f8fafc;
            color: var(--text-main);
            font-weight: bold;
        }

        .search-wrapper input {
            flex: 1 1 auto;
        }

        .search-wrapper button {
            background: linear-gradient(135deg, var(--dolby-bright), var(--dolby-base));
            color: #fff;
            border: none;
            border-radius: 25px;
            padding: 0.8rem 1.5rem;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            flex: 0 0 90px;
            letter-spacing: 0.05em;
        }

        .search-wrapper button:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(0, 136, 255, 0.4);
        }

        /* --------------------------
           検索結果リスト
           -------------------------- */
        .result-card {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 1.5rem 2rem;
            box-shadow: var(--card-shadow);
            margin-bottom: 3rem;
            border-top: 5px solid var(--accent-color);
        }

        .result-card h2 {
            font-family: 'M PLUS Rounded 1c', sans-serif;
            margin-top: 0;
            color: var(--text-main);
            border-bottom: 2px dashed #e2e8f0;
            padding-bottom: 0.5rem;
            font-size: 1.3rem;
        }

        .result-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .result-list li {
            padding: 0.8rem 0;
            border-bottom: 1px solid #f1f5f9;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .result-list li::before {
            content: '🎬';
            font-size: 1.2rem;
        }

        .result-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .result-link {
            font-weight: bold;
            color: var(--dolby-bright);
            font-size: 1.05rem;
        }

        /* --------------------------
           MENU (ポップEmojiカード)
           -------------------------- */
        .menu-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.5rem;
            margin-bottom: 3rem;
        }

        .menu-card {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--card-shadow);
            transition: transform 0.3s, box-shadow 0.3s;
            text-decoration: none;
            color: var(--text-main);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 0.8rem;
            border: 1px solid rgba(0, 0, 0, 0.02);
            position: relative;
            overflow: hidden;
        }

        .menu-card::before {
            /* 光の反射エフェクト */
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 50%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
            transform: skewX(-20deg);
            transition: 0.5s;
        }

        .menu-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--card-shadow-hover);
            border-color: rgba(0, 136, 255, 0.1);
        }

        .menu-card:hover::before {
            left: 200%;
        }

        .menu-icon {
            font-size: 3.5rem;
            display: inline-block;
            transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            line-height: 1;
        }

        .menu-card:hover .menu-icon {
            transform: scale(1.2) rotate(8deg);
        }

        .menu-title {
            font-family: 'M PLUS Rounded 1c', sans-serif;
            font-weight: 800;
            font-size: 1.25rem;
        }

        /* リンク無しカードのスタイル */
        .menu-card.disabled {
            background: #f8fafc;
            box-shadow: none;
            border: 1px dashed #cbd5e1;
            cursor: default;
        }

        .menu-card.disabled:hover {
            transform: none;
            box-shadow: none;
            border-color: #cbd5e1;
        }

        .menu-card.disabled .menu-icon {
            filter: grayscale(50%);
            opacity: 0.7;
        }

        .menu-card.disabled:hover .menu-icon {
            transform: none;
        }

        /* --------------------------
           サイト紹介文
           -------------------------- */
        .intro-text {
            text-align: center;
            background: var(--bg-card);
            border-radius: 20px;
            padding: 1.0rem 1.5rem 0.8rem;
            box-shadow: var(--card-shadow);
            margin: 0 auto 2rem;
            font-size: 0.95rem;
            line-height: 1.8;
            max-width: 700px;
            border: 1px solid rgba(0, 0, 0, 0.03);
            position: relative;
        }

        .intro-text::before {
            content: '🏠';
            display: block;
            position: static;
            margin: 0 auto 0.5rem;
            font-size: 2.5rem;
            filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
        }

        .intro-text p {
            margin: 0.8em 0;
        }

        .intro-highlight {
            font-weight: bold;
            color: var(--dolby-base);
            font-size: 1.15rem;
        }

        /* --------------------------
           サウンドの残響 (Kemuri)
           -------------------------- */
        .echo-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin-bottom: 1.5rem;
            box-shadow: var(--card-shadow);
            border-left: 6px solid var(--accent-color);
            transition: transform 0.2s;
        }

        .echo-card:hover {
            transform: translateX(5px);
        }

        .echo-title {
            font-family: 'M PLUS Rounded 1c', sans-serif;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--dolby-base);
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .echo-title::before {
            content: '💭';
            font-size: 1.2em;
        }

        .echo-content {
            font-size: 0.95rem;
            color: #475569;
            line-height: 1.7;
            overflow-wrap: break-word;
            word-break: break-all;
        }

        .pagination {
            display: flex;
            justify-content: space-between;
            margin: 2rem 0 4rem;
        }

        .page-btn {
            background: var(--bg-card);
            border: 1px solid #e2e8f0;
            padding: 0.8rem 1.5rem;
            border-radius: 50px;
            color: var(--text-main);
            font-weight: bold;
            box-shadow: var(--card-shadow);
        }

        .page-btn:hover {
            border-color: var(--accent-color);
            color: var(--accent-color);
            transform: translateY(-2px);
        }

        .page-btn.disabled {
            color: #cbd5e1;
            box-shadow: none;
            background: transparent;
            border-color: #f1f5f9;
            pointer-events: none;
        }

        /* --------------------------
           更新履歴
           -------------------------- */
        .history-card {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 1.5rem 2rem;
            box-shadow: var(--card-shadow);
            margin-bottom: 3rem;
            border-bottom: 5px solid var(--edgy-brown);
        }

        .history-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .history-list li {
            padding: 1rem 0;
            border-bottom: 1px dashed #e2e8f0;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
        }

        .history-title-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .history-icon {
            font-size: 1.2em;
        }

        .history-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .history-meta {
            color: var(--text-muted);
            flex: 0 0 auto;
        }

        .history-date {
            color: var(--text-muted);
            font-size: 0.85em;
            font-family: monospace;
            margin-left: 0.4rem;
        }

        /* --------------------------
           X (Twitter) Appeal Banner
           -------------------------- */
        .x-banner {
            display: flex;
            align-items: center;
            background: #0f1419;
            color: #ffffff;
            border-radius: 16px;
            padding: 1.2rem 1.5rem;
            margin: 0 auto 3rem;
            max-width: 600px;
            text-decoration: none;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
            transition: transform 0.3s, box-shadow 0.3s;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .x-banner:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
            color: #ffffff;
        }

        .x-banner-icon {
            flex: 0 0 45px;
            height: 45px;
            background: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1.2rem;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        }

        .x-banner-icon svg {
            width: 24px;
            height: 24px;
            color: #0f1419;
        }

        .x-banner-text {
            display: flex;
            flex-direction: column;
        }

        .x-banner-title {
            font-family: 'M PLUS Rounded 1c', sans-serif;
            font-weight: 800;
            font-size: 1.15rem;
            margin-bottom: 0.2rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .x-banner-title::after {
            content: '🔗';
            font-size: 1.1em;
        }

        .x-banner-desc {
            font-size: 0.85rem;
            line-height: 1.4;
            color: #e2e8f0;
        }

        /* フッター */
        .footer-links {
            text-align: center;
            margin: 3rem 0;
            font-size: 0.95rem;
            font-weight: bold;
        }

        /* 目安箱ピルボタン */
        .pill-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            color: var(--text-main);
            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;
            box-shadow: var(--card-shadow);
            transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s, color 0.3s;
            box-sizing: border-box;
            margin-top: 1rem;
        }

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

        /* モバイル微調整 */
        @media (max-width: 600px) {
            .hero {
                height: 30vh;
                min-height: 180px;
            }

            .search-wrapper form {
                flex-wrap: wrap;
            }

            .search-wrapper select,
            .search-wrapper input,
            .search-wrapper button {
                flex: 1 1 100%;
                width: 100%;
                /* はみ出し防止に幅を強制指定 */
                box-sizing: border-box;
                /* パディングを含める */
                border-radius: 15px;
            }

            .search-wrapper {
                border-radius: 25px;
                padding: 1rem;
                box-sizing: border-box;
                /* ここもはみ出し防止 */
                width: 100%;
            }

            .history-list li {
                flex-direction: column;
                align-items: stretch;
                gap: 0.4rem;
            }

            .history-meta {
                text-align: right;
                /* スマホ時は右寄せ指定 */
            }

            .history-date {
                margin-left: 0.3rem;
            }

            .x-banner {
                padding: 1rem;
                flex-direction: column;
                text-align: center;
                gap: 0.8rem;
                border-radius: 20px;
            }

            .x-banner-icon {
                margin-right: 0;
            }

            .x-banner-title {
                justify-content: center;
            }
        }