body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #451686;
}

.header {
    height: 50px;
    width: 100%;
    background-color: #2D0155;
    display: flex;
    align-items: left;
    justify-content: left;
    color: white;
}

.bottom {
    text-align: center;
    color: #ffffff;
    line-height: 15px;
    font-size: 12px;
    margin-top: 30px;
    margin-bottom: 30px
  }

.header .logo {
    height: 50px;
    margin-left: 10px;
}

.header h1 {
    margin: 0;
}

.game-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 5px;
    padding: 10px;
    margin: 0;
    box-sizing: border-box;
}

.game-item {
    position: relative;
    padding-top: 70%;
    /* 维持正方形 */
}

.game-item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 95%;
    height: 95%;
    object-fit: cover;
    border-radius: 10px;
    border: 2px solid white;
}

@media (min-width: 600px) {
    .game-list {
        grid-template-columns: repeat(4, 1fr);
        /* 确保更大屏幕每行显示4个 */
    }
}

@media (min-width: 900px) {
    .game-list {
        grid-template-columns: repeat(5, 1fr);
        /* 确保更大屏幕每行显示5个 */
    }
}