.lang-select-Box {
    position: fixed;
    z-index: 10;
    right: 2%;
    top: 1%;
    width: 6%;
}
#lang-select{
    background-color: unset;
    border: 1px solid darkred;
    color: darkred;
    font-weight: bold;
    padding: 5% 8%;
    outline: none;
    cursor: pointer;
    width: 100%;
}
#lang-select option {
    background-color: #000;      /* 選單展開後每個選項的背景 */
    color: darkred;
    border: 1px solid darkred;
    font-weight: bold;
    outline: none;
    font-size: .95em;
}