.top-show {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 30px;
    background-color: #9a9a9a; /* 灰色背景 */
    padding: 2px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    z-index: 1000;
}
button.top-show-button {
    background: #dbdbdb;
    color: rgb(0, 0, 0);
    border: none;
    margin-top: 5px;
    margin-left: 30px;
    padding: 3px 6px;
    font-size: 9px;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    display: inline-block;
}
button.top-show-button:hover {
    box-shadow: 0 10px 8px rgba(0, 0, 0, 0.3);
}

button.top-show-button:active {
    transform: translateY(1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}