/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    margin: 0;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
}

/* 游戏画布 */
#gameCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* 主容器 */
.container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    text-align: center;
}

.content {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 3rem 4rem;
    border-radius: 20px;
    box-shadow: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

h1 {
    font-size: 4rem;
    color: #444444;
    margin-bottom: 1rem;
    text-shadow: none;
}

.subtitle {
    font-size: 1.8rem;
    color: #444444;
    text-shadow: none;
}

/* 音乐控制按钮 */
.audio-control {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 20;
}

#musicToggle {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #444444;
    padding: 12px 24px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

#musicToggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

/* 响应式设计 */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.3rem;
    }
    
    .content {
        padding: 2rem 2.5rem;
    }
}