html, body {
    touch-action: manipulation;
}


body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
}


main {
  padding: 20px;
  background-color: #fff;
  margin: 20px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  border-radius: 0; /* 直角矩形 */
}


#game-section, #leaderboard-section {
    /* width: 80%; */
    max-width: 100000px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    padding: 25px;
    box-sizing: border-box;
}

#game-board {
    width: 50vh;
    height: 90vh;
    background-color: #000;
    margin: 20px auto;
    position: relative;
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    grid-template-rows: repeat(20, 1fr);
    gap: 0;
}

#game-board div {
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    border: 1px solid #333;
}

#controls {
    display: flex;
    justify-content: center;
    margin-top: 10px;
}

#controls button {
    margin: 0 20px;
    padding: 4%;
    height: 30%;
    width: 30%;
    font-size: 35px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.setfontsize {
    font-size: 50px;
}

#controls button:hover {
    background-color: #45a049;
}

#info {
    margin-top: 20px;
}

#info span {
    margin-right: 20px;
    font-size: 18px;
}

#leaderboard {
    margin: 20px auto;
    width: 100%;
    text-align: left;
}

.leaderboard-entry {
    border: 1px solid #ddd;
    padding: 10px;
    margin: 5px 0;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
}

.rank {
    font-weight: bold;
}

.username {
    flex-grow: 1;
    text-align: left;
}

.score {
    text-align: right;
    font-weight: bold;
    color: #4CAF50;
}

.user-info-highlight {
    background-color: #e0f7fa;
    border-radius: 10px;
    padding: 10px;
    text-align: center;
    margin-bottom: 20px;
}

@media (max-width: 600px) {
    #game-board {
        width: 100%;
        height: auto;
    }
}