@media screen and (min-width: 751px) {
    header {
        background-color: rgba(255, 255, 255, 0);
    }
}

@media screen and (max-width: 750px) {
    section {
        margin: 0;
    }
}

#fade {
    width: 100%;
    height: 100%;
    background-color: #fff;
    position: fixed;
    top: 0px;
    left: 0px;
    z-index: 10000;
}

#main-visual {
    position: relative;
    display: block;
}

#main-visual h1, #main-visual .mv-catch, #main-visual .mv-bnr {
    position: absolute;
}

#main-visual .mv-logo, #main-visual .mv-catch {
    opacity: 0;
}

#main-visual .bnr-slider-block {
    background: rgba(255, 255, 255, 0.8);
    position: relative;
}

@media screen and (min-width: 751px) {
    #main-visual {
        width: 100%;
        height: 1420px;
        margin: -76px 0 0;
        overflow: hidden;
    }

    #main-visual::before {
        display: block;
        content: "";
        background: url("../images/top/bg_pv_grade.png") repeat-x 0 0;
        width: 100%;
        height: 890px;
        position: absolute;
        bottom: -460px;
        left: 0;
        z-index: 2;
    }

    #main-visual .mv-video-container {
        width: 1600px;
        width: 100%;
        min-width: 1600px;
        height: 1360px;
        position: absolute;
        top: 0;
        left: 50%;
        transform: translateX(-50%);
    }

    #main-visual .mv-video-container video {
        width: 100%;
    }

    #main-visual .mv-catch {
        width: 90px;
        bottom: 635px;
        right: 50%;
        margin-right: -718px;
    }

    #main-visual .mv-bnr {
        width: 430px;
        bottom: 645px;
        margin-left: 100px;
    }

    #main-visual .bnr-slider-block {
        width: 100%;
        padding: 20px 0 15px;
        position: absolute;
        bottom: 423px;
        left: 50%;
        transform: translate(-50%, -50%);
    }

    #main-visual .bnr-slider-block .bnr-slider {
        overflow: hidden;
        width: 1200px;
        padding: 0;
        margin: 0 auto;
    }

    #main-visual .bnr-slider-block .bnr-slider .slide .list {
        float: left;
        width: 280px;
        margin: 0 10px;
    }

    #main-visual .bnr-slider-block .bnr-slider .slide .list img {
        width: 100%;
    }
}

@media screen and (max-width: 750px) {
    #main-visual {
        width: 100%;
        height: 1320px;
        padding-top: 990px;
        margin: -130px 0 0;
    }

    #main-visual::before {
        display: block;
        content: "";
        background: url("../images/top/bg_pv_grade_sp.png") no-repeat;
        width: 750px;
        height: 300px;
        position: absolute;
        bottom: 230px;
        left: 0;
        z-index: 2;
    }

    #main-visual .mv-video-container {
        width: 101%;
        height: 1090px;
        position: absolute;
        top: 0;
        left: -1px;
    }

    #main-visual .mv-video-container iframe {
        width: 100%;
        height: 100%;
    }

    #main-visual h1 {
        width: 90%;
        bottom: 400px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 2;
    }

    #main-visual h1 img {
        width: 100%;
        max-width: 100%;
        height: auto;
    }

    #main-visual .mv-catch {
        width: 450px;
        top: 40px;
        left: 50%;
        transform: translateX(-50%);
    }

    #main-visual .mv-bnr {
        width: 670px;
        bottom: 200px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 4;
    }

    #main-visual .bnr-slider-block {
        width: 100%;
        bottom: -167px;
        padding: 20px 0 15px;
    }

    #main-visual .bnr-slider-block .bnr-slider {
        width: 100%;
        margin: 0 auto;
    }

    #main-visual .bnr-slider-block .bnr-slider .slide {
        margin-left: 25px;
    }

    #main-visual .bnr-slider-block .bnr-slider .slide .list {
        float: left;
        width: 330px !important;
        margin: 0 10px;
    }

    #main-visual .bnr-slider-block .bnr-slider .slide .list img {
        width: 100%;
        max-width: 100%;
        height: auto;
    }
}