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

body {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    overflow: hidden;
}

#game-container {
    width: 100%;
    max-width: 800px;
    aspect-ratio: 16 / 9;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

#game-container canvas {
    width: 100% !important;
    height: 100% !important;
}

@media (max-width: 768px) {
    body {
        align-items: flex-start;
        padding-top: 20px;
    }

    #game-container {
        max-width: 100%;
        border-radius: 0;
        box-shadow: none;
    }
}

@media (max-height: 500px) {
    body {
        align-items: center;
    }

    #game-container {
        max-height: 95vh;
        aspect-ratio: auto;
    }
}