* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
            background: linear-gradient(135deg, #8e44ad 0%, #3498db 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            background: white;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            overflow: hidden;
        }

        .header {
            background: linear-gradient(135deg, #8e44ad 0%, #9b59b6 100%);
            color: white;
            padding: 40px;
            text-align: center;
        }

        .header h1 {
            font-size: 2.5em;
            margin-bottom: 10px;
        }

        .header p {
            font-size: 1.2em;
            opacity: 0.95;
        }

        .content {
            padding: 40px;
        }

        .intro-box {
            background: linear-gradient(135deg, #ffeaa7 0%, #fdcb6e 100%);
            padding: 30px;
            border-radius: 15px;
            margin-bottom: 40px;
        }

        .intro-box h2 {
            color: #2d3436;
            margin-bottom: 15px;
        }

        .intro-box p {
            color: #2d3436;
            line-height: 1.8;
            margin-bottom: 10px;
        }

        .genus-section {
            margin-bottom: 50px;
        }

        .genus-header {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
            padding: 20px;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            border-radius: 15px;
            border-left: 5px solid #8e44ad;
        }

        .genus-number {
            background: #8e44ad;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5em;
            font-weight: bold;
            margin-right: 20px;
            flex-shrink: 0;
        }

        .genus-title h3 {
            color: #2d3436;
            font-size: 1.8em;
            margin-bottom: 5px;
        }

        .genus-title p {
            color: #636e72;
            font-size: 1.1em;
        }

        .genus-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-bottom: 20px;
        }

        .genus-info {
            background: #f8f9fa;
            padding: 25px;
            border-radius: 10px;
        }

        .genus-info h4 {
            color: #8e44ad;
            margin-bottom: 15px;
            font-size: 1.3em;
        }

        .genus-info p {
            color: #555;
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .interval-structure {
            background: white;
            padding: 15px;
            border-radius: 8px;
            margin: 15px 0;
            border-left: 3px solid #8e44ad;
        }

        .interval-structure strong {
            color: #8e44ad;
        }

        .notes-display {
            background: #2d3436;
            color: #ffeaa7;
            padding: 20px;
            border-radius: 10px;
            font-family: 'Courier New', monospace;
            font-size: 1.2em;
            text-align: center;
            margin: 15px 0;
        }

        .play-button {
            width: 100%;
            padding: 18px;
            background: linear-gradient(135deg, #8e44ad 0%, #9b59b6 100%);
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 1.2em;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(142, 68, 173, 0.4);
        }

        .play-button:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 20px rgba(142, 68, 173, 0.6);
        }

        .play-button.playing {
            background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
        }

        .comparison-section {
            background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
            padding: 30px;
            border-radius: 15px;
            text-align: center;
            margin-top: 40px;
        }

        .comparison-section h3 {
            color: #2e7d32;
            margin-bottom: 20px;
            font-size: 1.8em;
        }

        .comparison-section p {
            color: #2d3436;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .historical-note {
            background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
            padding: 30px;
            border-radius: 15px;
            margin-top: 40px;
        }

        .historical-note h3 {
            color: #1565c0;
            margin-bottom: 15px;
            font-size: 1.5em;
        }

        .historical-note p {
            color: #2d3436;
            line-height: 1.8;
            margin-bottom: 10px;
        }

        @media (max-width: 768px) {
            .genus-content {
                grid-template-columns: 1fr;
            }
        }
    
.native-audio-fallback{display:block;width:100%;max-width:420px;margin:12px auto;}