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

body {
    min-height: 100vh;
    background-color: #1a1a1a;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: "Microsoft YaHei", sans-serif;
}

.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.score-box {
    color: #ffffff;
    font-size: 26px;
    font-weight: bold;
    text-shadow: 0 0 5px #00ff00;
}

#snakeCanvas {
    border: 3px solid #00ff00;
    background-color: #000000;
}

.tips {
    color: #cccccc;
    font-size: 16px;
}