/* 繁簡切換器（導覽列右上角） */
.lang-switch {
    display: inline-flex;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, .4);
    border-radius: 6px;
    overflow: hidden;
    margin-left: .5rem;
}
.lang-switch .lang-opt {
    border: 0;
    background: transparent;
    color: #fff;
    font-size: .82rem;
    line-height: 1.2;
    padding: .25rem .6rem;
    cursor: pointer;
    white-space: nowrap;
}
.lang-switch .lang-opt + .lang-opt {
    border-left: 1px solid rgba(255, 255, 255, .4);
}
.lang-switch .lang-opt:hover {
    background: rgba(255, 255, 255, .15);
}
.lang-switch .lang-opt.active {
    background: #fff;
    color: var(--hk-blue);
    font-weight: 600;
}