ul { /* 取消ul預設的內縮及樣式 */
    margin: 0;
    padding: 0;
    list-style: none;
}
.menu{
    display: flex;
    justify-content:center;
    align-items:center;
    background-color: #fff;
    height: 45px;
    z-index: 10;
}



.menu-navbar{
    flex: none;
    width: 900px;
    text-align: center;
}


@media (max-width: 1200px){
    .menu-navbar{
        width: 720px;
    }
}


.menu-navbar > ul > li{
    display: inline-block;
    background-color: #fff;
    height:45px;
    padding-top: 10px;
}
.menu-navbar > ul > li > a{
    color:#333;
    font-size: 14px;
    letter-spacing: 1px;
    padding: 0px 14px;
    user-select: none;
    text-decoration:none;
    margin: auto;
}

.menu-navbar > ul > li > ul{
    display: block;
    position: absolute;
    top:45px;
    margin: 0;
    z-index: 10;
}

.menu-navbar>ul>li>ul>li>a {
    display: block;
    color: #333;
    padding: 5px;
    text-align: left;
    text-decoration: none;
    padding: 10px 14px;
    width: 120px;
    font-size: 14px;
    letter-spacing: 1px;
}

@media screen and (min-width:992px) and (max-width:3000px) {
    .menu-navbar>ul>li:hover>ul:after {
        border-left: 7px solid transparent;
        border-right: 7px solid transparent;
        border-bottom: 10px solid #eee;
        top: -10px;
        content: '';
        display: block;
        height: 0;
        left: 28%;
        position: absolute;
        width: 0;
        z-index: 10;
    }

    .menu-navbar>ul>li>ul>li {
        display: none;
    }

    .menu-navbar>ul>li:hover>ul>li {
        display: block;
        background-color: #eee;
        border-bottom: 1px solid #ccc;
    }

    .menu-navbar>ul>li:hover>ul>li:last-child {
        border-bottom: 0px solid #eee;
    }
    .menu-navbar>ul>li>ul>li a:hover {
        background-color: #333;
        color: #eee;
        width: 100%;
    }
}







.logo{
    flex:none;
    width: 120px;
    text-align: center;
}
.logo>a>img {
    height: 35px;
    position: relative;
}
.social{
    flex:none;
    width: 80px;
}
.social > ul{
    text-align: end;
}
.social > ul li{
    display: inline;
}
.social > ul > li > a > img{
    color:#333;
    padding: 5px;
    text-decoration:none;
    width: 30px;
}
.list-arrow {
    padding-right: 16px;
    position: relative;
}
.list-arrow::after {
    content: '';
    border-right: 1px solid #999;
    border-bottom: 1px solid #999;
    display: inline-block;
    height: 8px;
    margin: -4px 0 0;
    position: absolute;
    right: 15px;
    top: 45%;
    transform: rotate(45deg);
    width: 8px;
}

@media (max-width: 991px){
    .menu{
        display: block;
        justify-content:center;
        align-items:center;
        background-color: #eee;
        
    }

    .mod-menu-def {
        position: absolute;
        top: -600px;
    }

    .mod-menu-close{
        position: absolute;
        top: -600px;
        height: 100%;
        opacity: 0;
        animation: mod-menu-close 1s;
    }
    .mod-menu-open {
        position: fixed;
        top: 45px;
        height: 100%;
        opacity: 1;
        animation: mod-menu-open 1s;
    }
    .menu-open {
        display: block;
        justify-content: center;
        align-items: center;
        position: absolute;
        top: 45px;
        height: 100%;
    }
    .logo{
        display: none;
        flex:none;
        width: 120px;
        text-align: center;
    }
    .menu-navbar{
        width: 100%;
    }
    .menu-navbar > ul > li{
        display: block;
        background-color: #fff0;
        height: auto;
        padding: 10px 0px;
        border-bottom: 1px solid #ccc;
        text-align: left;
    }

    .menu-navbar > ul > li > .drop-down-menu {
        display: none;
        position: relative;
        top: auto;
        z-index: 2;
    }
    .menu-navbar>ul>li>.drop-down-menu-open {
        display: block;
        position: relative;
        top: 10px;
        z-index: 10;
    }

    .menu-navbar>ul>li>.drop-down-menu-open>li {
        border-bottom: 1px solid #ccc;
        border-bottom-style: dashed;
    }
    .menu-navbar>ul>li>.drop-down-menu-open>li:last-child {
        border-bottom: 1px solid #ccc0;
    }
    

    .menu-navbar>ul>li>ul>li>a {
        padding: 10px 40px;
        width: auto;
    }

    .social{
        display:none;
    }

    .list-arrow::after {
        content: '';
        border-right: 1px solid #999;
        border-bottom: 1px solid #999;
        display: inline-block;
        height: 8px;
        margin: -4px 0 0;
        position: absolute;
        right: 15px;
        top: 22px;
        transform: rotate(45deg);
        width: 8px;
    }
    .menu-navbar>ul>li>a {
        height: auto;
        display: block;
    }

    .menu-navbar>ul>li>ul:after {
        border-bottom: 10px solid none;
    }
    .menu-navbar>ul>li:hover>ul:after {
        border-bottom: 10px solid #eee;
        
        position: absolute;
        left: 28px;
    }

    @keyframes mod-menu-open {
        from {
            top: -680px;
            opacity: 0;
        }

        to {
            top: 45px;
            opacity: 1;
        }
    }

    @keyframes mod-menu-close {
        from {
            top: 45px;
            opacity: 1;
        }

        to {
            top: -300px;
            opacity: 0;
        }
    }


    

}