@media (min-width: 1200px) {
    .navbar-collapse {
        width: 80%;
        float: right;
    }
}
@media (max-width: 1200px) {
    .navbar-inverse .navbar-logobox {
        width: 100%;
    }
    .navbar-inverse .navbar-header {
        width: 16%;
        float: left;
    }
    .navbar-inverse .navbar-nav li a {
        padding: .38em;
    }
    .navbar-inverse .navbar-nav li.social {
        padding: .9em 0;
    }
}
@media (min-width: 768px) {
    .visible-sm-down {
        display: none !important;
    }
}
@media screen and (max-width:767px) {
    /* menu */
    .navbar-inverse .navbar-header {
        float: none;
        width: 100%;
        margin: auto 0;
    }
    .navbar-inverse .navbar-header .navbar-toggle {
        padding: 9px 10px;
        margin-top: 8px;
    }
    .navbar-inverse .navbar-header .navbar-toggle .icol-bar-a {
        display: block;
        color: #fFf;
        height: 3px;
        width: 20px;
        margin: 3px 0 0;
        background: #fff;
    }
    .hidden-sm-down {
        display: none
    }
    .navbar-inverse .dropdown {
        float: none;
        width: 100%;
    }
    header .navbar-inverse .navbar-nav {
        float: none;
        width: 100%;
        margin: 0;
    }
    .navbar-inverse .navbar-nav li a {
        padding: 1vh;
    }
    .navbar-inverse .navbar-nav .social-btn {
        float: left;
        left: 30%;
    }
    .dropdown-menu.btn .caret {
        display: none;
    }
    .navbar-inverse .navbar-logobox {
        width: 20%;
        padding: 9px 10px;
    }
    .navbar-inverse .navbar-nav li.social {
        padding: 0;
    }
    .navbar-inverse .navbar-collapse,
    .navbar-inverse .navbar-form {
        border-bottom: 5px solid #b55300;
    }

    /* speakers */
    .speaker-box {
        text-align: center;
    }

    /* footer */
    footer img {
        width: 30%;
        margin: 2% auto;
    }

    /* kv */
    .section--kv .mobile-head {
        padding-top: 6%;
    }



    /* agenda */
    .table-responsive {
        padding-top: 20px;
    }
    .table-responsive:after {
        content: "可向右滑 →";
        position: absolute;
        top: 0px;
        left: 0px;
        color: #da6e12;
        font-weight: bold;
    }

    /* sponsors page */
    .section--sponsors .sponsor-row--text {
        right: 0;
        padding: 5% 1% 2% 2%;
    }
    .section--sponsors .sponsor-row--img {
        margin-top: -3%;
        margin-bottom: -2%;
    }
}
@media screen and (max-width:480px) {
    /* footer */
    footer img {
        width: 50%;
    }
}
@media screen and (max-width: 1024px) {
    .section--speaker .speaker-box a {
        min-height: 320px;
    }
}