/* 共用件 */
    * {
        padding: 0px;
        margin: 0px;
        font-family: Lato, Noto Sans TC;
        /* border: #1E98A5 1px solid; */
    }

    body {
        background-color: hsl(0, 0%, 90%, 0.5);
    }

    .bgc-white {
        background-color: #fff;
    }

    .bgc-lightgray {
        background-color: hsl(0, 0%, 70%, 1);
    }

    h1 {
        display: none;
    }

    h2 {
        font-size: 36px;
        text-align: center;
    }

    h3 {
        text-align: center;
        padding-top: 5%;
        font-size: 36px;
    }

    .welcome-sign {
        border-bottom-left-radius: 32px;
        border-bottom-right-radius: 32px;
        margin-bottom: 32px;
    }

    .content_box {
        border-radius: 32px;
        margin-bottom: 32px;
        overflow: hidden;
    }

    .btn-L {
        color: #FFF;
        font-size: 2.5vmax;
        line-height: 80px;
        text-align: center;
        height: 320px;
        border-radius: 32px;
        transition: 0.5s;
        margin-bottom: 32px;
        text-shadow: 0 0 0.5em #E9E9E9;
    }

    .btn-L:hover {
        color: #FFF;
        text-shadow: 0 0 0.2em #E9E9E9;
        opacity: 1;
        box-shadow: 0px 5px 20px 0px rgba(0, 0, 0, 0.3);
        transform: translate(-3px, -3px);
    }

    .btn-M {
        color: #FFF;
        font-size: 25px;
        line-height: 80px;
        text-align: center;
        width: 100%;
        height: 80px;
        border-radius: 32px;
        background-color: #3f3f3f;
        transition: 0.5s ease-in-out;
    }

    .btn-M:hover {
        background: linear-gradient(15deg, rgba(0, 136, 255, 0.9), rgba(255, 225, 75, 0.973), rgba(212, 25, 25, 0.968));
        background: -webkit-linear-gradient(15deg, rgba(0, 136, 255, 0.9), rgba(255, 225, 75, 0.973), rgba(212, 25, 25, 0.968));
        background-size: 500% 500%;
        animation: AnimeGrade 10s ease infinite;
        text-decoration: none;
        letter-spacing: 0.1em;
        box-shadow: 0px 5px 20px 0px rgba(0, 0, 0, 0.3);
    }

    @keyframes AnimeGrade {
        0% {
            background-position: 0% 50%;
        }

        50% {
            background-position: 100% 50%;
        }

        100% {
            background-position: 0% 50%;
        }
    }

    .space {
        height: 80px;
        width: 100%;
    }

    #LED,
    #PCB,
    #project_design {
        position: relative;
        top: -140px;
        width: 0;
        height: 0;
        visibility: hidden;
    }


    /* 導航列開始 */
    .header {
        height: 90px;
        width: 100%;
        background-color: rgb(255, 255, 255);
        position: fixed;
        z-index: 100;
        box-shadow: 0px 2px 20px rgba(0, 0, 0, 0.2);
    }

    .header a {
        text-decoration: none;
    }

    .header-logo {
        float: left;
        padding-top: 15px;
        color: #3B3B3B;
        text-decoration: none;
    }

    #EB {
        fill: #000;
        fill-rule: evenodd;
        opacity: 0.6;
        height: 60px;
        width: auto;
        cursor: pointer;
        -webkit-transition: opacity 0.5s ease;
        -moz-transition: opacity 0.5s ease;
        -o-transition: opacity 0.5s ease;
        transition: opacity 0.5s ease;
    }

    #EB:hover {
        fill: url(#gradient);
        opacity: 1.0;
    }

    .dropdown-menu {
        background-color: #FFF;
        width: 200px;
    }

    .menu {
        float: right;
        list-style-type: none;
    }

    .menu li {
        float: left;
        position: relative;
    }

    .menu li a {
        display: block;
        color: #3B3B3B;
        opacity: 0.8;
        height: 90px;
        padding: 1.8em 1em;
        text-align: center;
    }

    .menu a:hover {
        color: #FFF;
        background: linear-gradient(15deg, rgba(0, 136, 255, 0.9)40%, rgba(255, 225, 75, 0.973), rgba(212, 25, 25, 0.968));
        background: -webkit-linear-gradient(15deg, rgba(0, 136, 255, 0.9)40%, rgba(255, 225, 75, 0.973), rgba(212, 25, 25, 0.968));
        background-size: 500% 500%;
        animation: AnimeGrade 5s ease infinite;
        box-shadow: 0px 5px 10px 0px rgba(0, 0, 0, 0.3);
    }

    .showmenu {
        display: none;
    }

    .mobile-menu {
        display: none;
    }

    /* 導航列結束 */

    /* 主體內容 */
    .worldmap {
        background-image: url(images/worldmap.svg);
        height: 80vh;
        background-repeat: no-repeat;
        background-size: contain;
        background-position: center;
    }

    .content {
        color: #333;
        font-size: 28px;
        margin: 50px 16%;
        line-height: 56px;
        letter-spacing: 2px;
    }

    .content_box ul {
        padding-left: 30px;
    }

    /* 頁尾註腳 */
    footer {
        color: #595757;
        padding: 50px 0;
    }

    footer a {
        color: #595757;
        text-decoration: none;
        font-size: 16px;
        text-align: center;
    }

    #R:hover {
        color: rgba(212, 25, 25, 0.968);
    }

    #G:hover {
        color: rgba(29, 196, 90, 0.968);
    }

    #B:hover {
        color: rgba(0, 136, 255, 0.9);
    }

    #Y:hover {
        color: rgba(253, 169, 0, 0.998);
    }

    #P:hover {
        color: rgba(253, 0, 215, 0.998);
    }

    .navbar-nav li {
        padding: 5px 0;
    }

    .copyright {
        color: #AAA;
        border-top: #AAA 1px solid;
        font-size: 16px;
        padding-top: 30px;
    }


    /* 平板 */
    @media (max-width: 991px) {
        .header {
            height: 72px;
        }

        .header-logo {
            padding-top: 12px;
        }

        #EB {
            height: 50px;
        }

        /* 平板導航列 */
        .menu {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s;
            position: absolute;
            z-index: 100;
            top: 72px;
            left: 0;
            right: 0;
            background: #FFF;
        }

        .menu li {
            float: none;
        }


        .pc-menu {
            display: none;
        }

        .showmenu {
            display: block;
            float: right;
            color: #FFF;
            font-size: 2.7em;
            margin: 24px auto;
        }

        .showmenu:hover {
            color: rgba(255, 255, 255, 0.9)
        }

        /*jQuery點擊後動態在 body 加上 class */
        .menu-show .menu {
            max-height: 500px;
        }

        /* 平板選單漢堡 */
        .hamburger {
            width: 40px;
            cursor: pointer;
            opacity: 1;
        }

        .hamburger:hover {
            opacity: 0.8;
        }

        .hamburger .line {
            display: block;
            width: 80%;
            height: 5px;
            border-radius: 3px;
            background-color: #604c5f;
            margin-bottom: 6px;
            -webkit-transition: all 0.3s ease-in-out;
            transition: all 0.3s ease-in-out;
        }

        #hamburger.active .line:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

        #hamburger.active .line:nth-child(2) {
            opacity: 0;
        }

        #hamburger.active .line:nth-child(3) {
            transform: translateY(-16px) rotate(-45deg);
        }

        .language_family {
            position: relative;
            margin: 10px calc(50% - 30px);
        }

        .dropdown-toggle {
            visibility: hidden;
        }

        /* 平板內容 */
        .welcome-sign,
        .btn-L {
            margin-bottom: 16px;
        }

        .row,
        .content_box {
            padding: 0 10px;
        }

        .content {
            font-size: 22px;
            margin: 20px 10%;
            line-height: 48px;
            letter-spacing: 2px;
        }


        /* 平板頁尾 */
        .footer-logo {
            background-position: center;
            margin-bottom: 60px;
        }

        .footer-contact p {
            text-align: center;
        }
    }

    /* 手機內容 */
    @media (max-width: 781px) {
        #EB {
            height: 40px;
        }

        .header-logo {
            padding-top: 17px;
        }
    }