body {
            background-color: #e0f2f1;
            font-family: 'Zen Maru Gothic', sans-serif;
            overflow-x: hidden;
        }

        /* レトロなタイル背景 */
        .tile-bg {
            background-image: 
                linear-gradient(335deg, rgba(255,255,255,0.4) 23px, transparent 23px),
                linear-gradient(155deg, rgba(255,255,255,0.4) 23px, transparent 23px),
                linear-gradient(335deg, rgba(255,255,255,0.4) 23px, transparent 23px),
                linear-gradient(155deg, rgba(255,255,255,0.4) 23px, transparent 23px);
            background-size: 58px 58px;
            background-color: #80cbc4; /* 銭湯グリーン */
        }

        /* 湯気（曇りガラス効果） */
        .steam-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            pointer-events: none;
            z-index: 40;
            transition: backdrop-filter 1s ease;
            background: radial-gradient(circle at center, transparent 30%, rgba(255,255,255,0.4) 100%);
        }

        /* 暖簾（のれん） */
        .noren-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 200px;
            z-index: 50;
            display: flex;
            pointer-events: none; /* 下のコンテンツをクリック可能に */
        }
        .noren-panel {
            flex: 1;
            background: #1a237e; /* 藍色 */
            height: 100%;
            transform-origin: top center;
            transition: transform 0.5s ease-in-out;
            border-right: 1px solid rgba(255,255,255,0.1);
            position: relative;
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-family: 'Dela Gothic One', cursive;
            font-size: 3rem;
            writing-mode: vertical-rl;
            text-orientation: upright;
            box-shadow: 0 4px 6px rgba(0,0,0,0.3);
        }
        /* ホバーでめくれる */
        .noren-panel:hover {
            transform: scaleY(0.8) skewX(5deg);
        }

        /* ケロリン風桶アニメーション */
        .oke-spin {
            animation: spin-oke 10s linear infinite;
        }
        @keyframes spin-oke {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* 波紋アニメーション */
        .ripple {
            position: absolute;
            border: 2px solid rgba(255,255,255,0.6);
            border-radius: 50%;
            animation: ripple 2s infinite;
        }
        @keyframes ripple {
            0% { width: 0; height: 0; opacity: 1; }
            100% { width: 200px; height: 200px; opacity: 0; }
        }