body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #222;
    font-family: Arial, sans-serif;
    overflow: hidden;
}

#game-container {
    position: relative;
    width: 360px;
    height: 640px;
    background-color: #fff;
    border-radius: 20px;
    border: 8px solid #333;
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

#scroll-area {
    position: relative;
    width: 100%;
    height: 2000px;
    background-color: #f0f0f0;
    transition: top 0.1s linear;
    top: 0;
}

#attention-zone {
    position: absolute;
    width: 240px;
    height: 360px;
    border: 3px dashed rgba(0, 100, 255, 0.3);
    background-color: rgba(0, 100, 255, 0.1);
    border-radius: 12px;
    top: 140px;
    left: 60px;
    z-index: 10;
    transition: all 0.3s ease;
    display: none; /* 隐藏视野区域 */
}