/* ==================================================================================
    Media query
================================================================================== */
@media only screen
and (max-width: 768px) {

    .carousel-inner .item:first-child {
        background: url("/2023/images/main/bg_main_banner_04.jpg") 50% top no-repeat;
        background-size: cover;
    }
    .carousel-inner .item:nth-child(2) {
        background: url("/2023/images/main/bg_main_banner_02.jpg") 50% top no-repeat;
        background-size: cover;
    }
    .carousel-inner .item:nth-child(3) {
        background: url("/2023/images/main/bg_main_banner_03.jpg") 50% top no-repeat;
        background-size: cover;
    }
    .carousel-inner .item:nth-child(4) {
        background: url("/2023/images/main/bg_main_banner_01.jpg") 50% top no-repeat;
        background-size: cover;
    }

    .main-spot-area .btn-proceeding {
        left: 50%;
        bottom: 20px;
        width: 320px;
        height: 40px;
        line-height: 40px;
        margin-left: -160px;
        text-align: center;
        font-size: 18px;
    }

    /*main-spot-area*/
    .carousel-fade .carousel-inner > .item {
        height: 300px;
        opacity: 0;
        /* -webkit-transition: .3s ease; */
        /* transition: .3s ease; */
        transition-property: opacity;
        margin-top: 50px;
        padding: 0;
        background-size: cover;
        background-color: rgba(0,54,114,0.1);
    }
    .conference-caption {
        display: table-cell;
        vertical-align: middle;
        /*margin: 0 auto;*/
        /*text-align: center;*/
        width: 100%;
        /*height: 260px;*/
        background-color: rgba(0,54,114,0);
    }
    .conference-caption .conference-title {
        margin: 0 0 5px;
        padding: 0 10px;
        line-height: 1.1;
        font-size: 30px;
        font-weight: 700;
        color: #fff;
        text-shadow: 1px 1px 1px rgba(0,0,0,0.5);
    }
    .conference-caption .conference-sub-title {
        margin: 0 0 20px;
        padding: 0 10px;
        line-height: 1.5;
        font-size: 18px;
        font-weight: 500;
        color: #fff;
        letter-spacing: -0.5px;
        text-shadow: 1px 1px 1px rgba(0,0,0,0.5);
    }
    .conference-caption .conference-info {
        padding: 0 10px;
        line-height: 1.5;
        font-weight: 400;
        font-size: 18px;
        /*color: #fd367e;*/
        text-shadow: 1px 1px 1px rgba(0,0,0,0.5);
    }

    /*D-day style*/
    #quick {
        width: 100%;
        border-top: 0 solid transparent;
    }
    #quick .d-day {
        float: none;
        width: 100%;
        height: auto;
        padding: 20px 0 10px;
        /*background-color: #fd367e;*/
        text-align: center;
        font-size: 12px;
        font-weight: 700;
        line-height: 1;
        color: #fff;
    }
    #quick .d-day .d-date {
        display: inline-block;
        padding-left: 5px;
        font-size: 20px;
    }
    #quick .d-day .title {
        display: inline-block;
        padding-bottom: 10px;
        font-size: 16px;
        font-weight: 400;
    }

    /*quick-buttons*/
    #quick .quick-buttons {
        float: none;
        border-bottom: 1px solid #f0f0f0;
    }
    #quick .quick-buttons:after {
        content: '';
        display: block;
        clear: both;
    }
    #quick .quick-buttons li {
        float: left;
        width: 50%;
    }
    #quick .quick-buttons li a {
        display: inline-block;
        text-align: center;
        height: 130px;
        width: 100%;
    }
    #quick .quick-buttons li a span {
        padding-top: 5px;
        display: block;
        text-align: center;
        font-size: 16px;
        color: #333;
    }
    #quick .quick-buttons li:nth-child(3) a {
        background-color: #f7f8fd;
    }
    #quick .quick-buttons li:nth-child(4) a {
        background-color: #fff;
        /*background-color: #f7f8fd;*/
    }

    /*contents*/
    /*.conts-box .title {*/
    /*display: inline-block;*/
    /*margin: 50px 0 30px;*/
    /*width: 160px;*/
    /*line-height: 30px;*/
    /*color: #fff;*/
    /*font-weight: 700;*/
    /*text-align: center;*/
    /*}*/
    .conts-box {
        padding: 0 20px;
    }

    .main-contents .conts-left {
        float: none;
        border-right: 0 solid transparent;
    }
    .main-contents .conference-theme {
        width: 100%;
        height: auto;
        padding-bottom: 30px;
        border-bottom: 1px solid #f0f0f0;
    }
    .main-contents .notice {
        width: 100%;
        height: auto;
        padding-bottom: 30px;
        border-bottom: 1px solid #f0f0f0;
    }
    .main-contents .etc {
        width: 100%;
        height: auto;
        padding-bottom: 30px;
        border-bottom: 1px solid #f0f0f0;
    }
    .main-contents .etc .title {
        padding: 5px 10px;
        text-align: left;
        letter-spacing: -0.45px;
        line-height: 1.2;
    }
    .main-contents .conts-right {
        float: none;
        border-left: 0;
    }
    .main-contents .important-dates {
        width: 100%;
        height: auto;
        padding-bottom: 50px;
    }

    /* photo-zone */
    .main-contents .conts-right .photo-zone {
        padding: 30px 20px 0;
    }


}