@charset "utf-8";

@font-face {
    font-family: 'Allura';
    src: url('Allura-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

html {
    color: white;
    font-family: "Hiragino Sans";
    background: radial-gradient(circle, rgb(61, 23, 0), black);
}

body {
    /*background: radial-gradient(circle, rgb(61, 23, 0), black);*/
    position: relative;
    min-height: 100vh;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    margin: 0;
}

.header {
    z-index: 250;
    position: sticky;
    top: 0px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    background: linear-gradient(rgba(0, 0, 0, 1), rgba(0, 0, 0, 0));
    background: -webkit-linear-gradient(rgba(0, 0, 0, 1), rgba(0, 0, 0, 0));
    background: -o-linear-gradient(rgba(0, 0, 0, 1), rgba(0, 0, 0, 0));
    background: -moz-linear-gradient(rgba(0, 0, 0, 1), rgba(0, 0, 0, 0));
}

.header a img {
    margin-left: 10px;
    margin-top: 10px;
    width: 170px;
}

.header_login {
    display: block;
    position: absolute;
    text-align: center;
    top: 50%;
    left: 50%;
    font-size: 16px;
    transform: translateY(-50%) translateX(-50%);
    -webkit-transform: translateY(-50%) translateX(-50%);
}

.header_login p {
    margin: 5px;
}

.header_login a {
    color: white;
    background: rgba(255, 0, 0, 0.5);
    text-decoration: none;
    padding-left: 10px;
    padding-right: 10px;
}

/* チェックボックスを非表示にする */
.drawer_hidden {
    display: none;
}

/* ハンバーガーアイコンの設置スペース */
.drawer_open {
    display: flex;
    height: 140px;
    width: 120px;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 100;
    /* 重なり順を一番上にする */
    cursor: pointer;
}

/* ハンバーガーメニューのアイコン */
.drawer_open span,
.drawer_open span:before,
.drawer_open span:after {
    content: '';
    display: block;
    height: 3px;
    width: 50px;
    border-radius: 3px;
    background: #6c6c6c;
    transition: 0.5s;
    -webkit-transition: 0.5s;
    position: absolute;
}

/* 三本線の一番上の棒の位置調整 */
.drawer_open span:before {
    bottom: 14px;
    -webkit-transform-origin: center;
    -ms-transform-origin: center;
    transform-origin: center;
}

/* 三本線の一番下の棒の位置調整 */
.drawer_open span:after {
    top: 14px;
    -webkit-transform-origin: center;
    -ms-transform-origin: center;
    transform-origin: center;
}

/* アイコンがクリックされたら真ん中の線を透明にする */
#drawer_input:checked~.drawer_open span {
    background: rgba(255, 255, 255, 0);
}

/* アイコンがクリックされたらアイコンが×印になように上下の線を回転 */
#drawer_input:checked~.drawer_open span::before {
    bottom: 0;
    transform: rotate(45deg);
}

#drawer_input:checked~.drawer_open span::after {
    top: 0;
    transform: rotate(-45deg);
}

/* メニューのデザイン*/
.nav_content {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 100%;
    /* メニューを画面の外に飛ばす */
    z-index: 99;
    background: #fff;
    opacity: 0.95;
    transition: .5s;
    -webkit-transition: .5s;
    display: flex;
    display: -webkit-box;
    display: -ms-flexbox;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    align-items: center;
    -webkit-box-align: center;
    -ms-flex-align: center;

}

/* メニュー黒ポチを消す */
.nav_list {
    list-style: none;
}

/* アイコンがクリックされたらメニューを表示 */
#drawer_input:checked~.nav_content {
    left: 0;
    -webkit-transform: translateX(0);
    -ms-transform: translateX(0);
    transform: translateX(0);
    /* メニューを画面に入れる */
}

.nav_container {
    display: block;
    margin: auto auto;
}

.menu {
    z-index: 350;
    color: black;
    font-weight: bold;
    font-size: 30px;
    text-align: center;
    text-decoration: none;
    font-weight: 1500;
}

.nav_list li {
    margin: 2.5vh 0;
    text-align: center;
    text-decoration: none;
}

.nav_list li a {
    position: relative;
    font-size: 25px;
    text-decoration: none;
    color: black;
    transition: 0.3s;
}

.nav_list li a:hover {
    color: rgba(20, 20, 20, 0.5);
}

.nav_list li a::before {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -1px;
    width: 0;
    height: 1.5px;
    background: rgba(20, 20, 20, 0.5);
    transition: 0.3s;
}

.nav_list li a:hover::before {
    left: -5%;
    width: 110%;
}


.menuMEMBER {
    width: 100%;
    text-align: center;
    display: block;
    margin-top: 30px;
}

.menuMEMBER img {
    width: 55px;
    margin-right: 20px;
    display: inline-block;
    vertical-align: middle;
}

.menuMEMBER ul {
    margin: 0 0;
    padding: 0 0;
    list-style: none;
    display: inline-block;
    vertical-align: middle;
}

.menuMEMBER li {
    text-decoration: none;
    padding: 0 0;
    margin: 5px 0;
}

.menuMEMBER li a {
    font-size: 16px;
    color: black;
    text-decoration: none;
}

.menuMEMBER li p {
    font-size: 16px;
    color: black;
    padding: 0;
    margin: 0;
}

.menuMEMBER li a:hover {
    font-weight: bold;
    -webkit-font-weight: bold;
    -moz-font-weight: bold;
    -o-font-weight: bold;
}

.menuSNSicons li {
    display: inline-block;
    align-content: center;
}

.menuSNS {
    color: black;
    margin-top: 50px;
    text-align: center;
    font-weight: 1500;
}

.menuSNS p {
    font-weight: bold;
    font-size: 25px;
    margin: 0;
}

.menuSNSicons li {
    display: inline-block;
    align-content: center;
    margin: 18px 0;
}

.menuSNS li a img {
    width: 40px;
    margin: 0 40px;
    filter: brightness(0);
    transition: 0.3s;
}

.menuSNS li a img:hover {
    filter: brightness(0.5);
    width: 50px;
}

/*=============================================*/

.slide-in {
    font-size: 30px;
    font-weight: bold;
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    0% {
        transform: translateX(-25%);
        opacity: 0;
    }

    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

.page-title {
    font-size: 30px;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

.width-adjust {
    margin: 0 auto;
    padding-bottom: 80px;
    width: 100%;
    max-width: 1500px;
}

.main {
    width: 100%;
    height: 100vh;
    z-index: -30;
    position: absolute;
    margin: 0px auto;
    top: 0;
    padding-bottom: 20px;
    text-align: center;

}

.main_element {
    position: relative;
    display: block;
    margin: 0px auto;
}

.main img {
    height: 100vh;
    width: 100%;
    opacity: 0;
    object-fit: cover;
    animation-name: fadeIn;
    /*
    -webkit-animation-name: fadeIn;
    -moz-animation-name: fadeIn;
    -o-animation-name: fadeIn;
    */
    animation-duration: 2s;
    animation-fill-mode: forwards;
}

.main_texts {
    position: absolute;
    bottom: 0;
    left: 45%;
    bottom: 8vh;
    color: white;
    animation-name: zoomIn;
    -webkit-animation-name: zoomIn;
    -moz-animation-name: zoomIn;
    -o-animation-name: zoomIn;
    -webkit-animation-fill-mode: forwards;
    animation-duration: 2s;
    animation-fill-mode: forwards;
    opacity: 0;
    background-color: transparent;
}

.main_texts h2 {
    /* font-family: serif; */
    font-family: "Allura", cursive;
    font-weight: 600;
    font-style: normal;
    /* font-weight: bold; */
    font-size: 95px;
    text-shadow: -1px -2px 5px black;
    margin: 0 0;
    padding: 0 0;
}

.main_texts p {
    margin: 10px 0;
    font-family: "Allura", cursive;
    font-weight: 400;
    font-style: normal;
    text-shadow: -1px -2px 5px black;
    font-size: 50px;
}


@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    0% {
        transform: scale(0.8);
        opacity: 0;
        background-color: transparent;
    }

    100% {
        opacity: 1;
        transform: scale(1);
        background-color: transparent;
    }
}



.top_blocks {
    margin-top: 100vh;
}

.videos {
    padding-top: 30px;
    padding-bottom: 50px;

}

.videos h2 {
    padding-top: 0px;
    color: white;
    text-align: left;
    padding-left: 60px;
    font-size: 30px;
}

.slider {
    display: flex;
    margin: 0;
    padding: 0px;
    list-style: none;
}

/*========== TOP Videos================*/


.top_vlst {
    text-align: center;
    padding: 0;
}

.top_v {
    width: 350px;
    display: inline-block;
    vertical-align: top;
    border: 1px white solid;
    border-bottom: transparent;
    border-right: transparent;
    padding: 15px;
    margin: 20px 20px;
}

.top_vlst time {
    font-size: 15px;
    display: block;
    text-align: left;
}

.top_vtitle {
    margin: 0px 0px;
    font-size: 17px;
}

.top_vtag_youtube {
    margin: 5px 0px;
    font-size: 16px;
    border-radius: 14px;
    width: 7em;
    text-align: center;
    background: rgba(255, 0, 0, 0.719);
}

.top_vtag_officialsite {
    margin: 5px 0px;
    font-size: 16px;
    border-radius: 14px;
    width: 7em;
    text-align: center;
    background: rgba(55, 55, 55, 0.719);
}

.top_vtag_membership {
    margin: 5px 0px;
    font-size: 16px;
    border-radius: 14px;
    width: 7em;
    text-align: center;
    background: linear-gradient(45deg, #B67B03 0%, #DAAF08 45%, #e7d28a 70%, #DAAF08 85%, #B67B03 90% 100%);
}

.top_vlst img {
    width: 350px;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.top_vlst img:hover {
    filter: opacity(50%);
    transform: scale(1.1);
    transition: 0.3s;
}

.top_vlst video {
    width: 500px;
}

/*=================================*/


.elementBlock {
    margin-top: 40px;
    padding-bottom: 20px;
    margin-bottom: 20px;
}

.top_headline {
    display: block;
    margin-left: 20px;
    margin-bottom: 20px;
}

.top_headline h2 {
    display: inline-block;
    vertical-align: middle;
    padding: 0;
    color: white;
    text-align: left;
    padding-left: 40px;
    margin: 0;
    font-size: 46px;
}

.top_headline a {
    display: inline-block;
    vertical-align: middle;
    padding-left: 25px;
    font-size: 20px;
    color: white;
    opacity: 0.5;
    text-decoration: none;
    transition: all 0.3s ease;
}

.top_headline a:hover {
    font-size: 21px;
    padding-left: 35px;
    opacity: 1;
}

.top_p {
    color: white;
    text-align: center;
    font-size: 16px;
    max-width: 85%;
    margin: 0 auto;
}


.googleform {
    font-size: 20px;
    color: white;
    text-align: center;
    text-decoration: none;
    display: block;
    width: 270px;
    background-color: rgb(83, 83, 83);
    margin-right: auto;
    margin-left: auto;
    border-radius: 4px;
}

.googleform:hover {
    background-color: white;
    color: black;
}


/* ============= footer ============== */

.footer {
    margin-top: auto;
    flex-shrink: 0;
    height: 100%;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 15px 0;
    color: black;
    background: rgba(101, 101, 101, 0.8);
    backdrop-filter: blur(12px);
}

.copyright {
    text-align: center;
    font-size: 14px;
}

.footer-ul1 {
    list-style: none;
    padding: 0;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.footer-ul1 li {
    text-align: center;
    font-size: 20px;
    margin: 7px 5px;
}


.footer-ul1 li a {
    text-decoration: none;
    color: white;
    padding-left: 7px;
    padding-right: 7px;
    position: relative;
    transition: 0.3s;
}

.footer-ul1 li a:hover {
    color: black;
    background: white;
}

.footer-ul2 {
    list-style: none;
    padding: 0;
    margin-top: 10px;
    margin-bottom: 15px;
    font-size: 14px;
    color: rgb(21, 59, 92);
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.footer-ul2 li a {
    text-decoration: none;
    color: white;
    padding-left: 10px;
    padding-right: 10px;
    transition: 0.3s;
}

.footer-ul2 li a:hover {
    color: black;
    background: white;
}

/* ============= pages ============== */

.pages h1 {
    position: relative;
    text-align: center;
    font-size: 40px;
    color: white;
}
	
.pages h1:first-letter {
    font-size: 60px;
}

/* ============= news ============== */

.news a {
    text-decoration: none;
    color: #ffffff;
}

.news ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.news li {
    list-style: none;
}


.inner {
    width: 100%;
    max-width: 80vw;
    backdrop-filter: blur(12px);
    margin: 0 auto;
    padding: 65px 0;
}

.topinner {
    width: 100%;
    max-width: 80vw;
    backdrop-filter: blur(12px);
    margin: 0 auto;
    padding: 10px 0;
}

.sub_ttl {
    font-size: 30px;
    text-align: center;
    margin-bottom: 40px;
}

/* ここからがニュース記事のCSS */

.news_list {
    margin: 0;
}

.news_list_item {
    padding: 15px 0;
    border-bottom: 1px solid #E6E6E6;
}

.news_list_item:first-child {
    border-top: 1px solid white;
}

.news_list_item a {
    position: relative;
    display: flex;
    padding-right: 30px;
}

.news_list_date {
    font-size: 15px;
    display: flex;
    margin-right: 15px;
    align-items: center;
}

.news_item1 {
    background: rgba(0, 0, 0, 0.719);
    border-radius: 14px;
    width: 7em;
    color: white;
    text-align: center;
    margin-left: 20px;
}

.news_item2 {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 14px;
    width: 7em;
    color: black;
    text-align: center;
    margin-left: 20px;
}

.news_item3 {
    background: linear-gradient(45deg, rgba(182, 123, 3, 0.8) 0%, rgba(218, 175, 8, 0.8) 45%, rgba(231, 210, 138, 0.8) 70%, rgba(218, 175, 8, 0.8) 85%, rgba(182, 123, 3, 0.8) 90% 100%);
    border-radius: 14px;
    width: 7em;
    color: white;
    text-align: center;
    margin-left: 20px;
}

.arrow {
    width: 25px;
    height: 1px;
    background: #707070;
    position: absolute;
    top: 50%;
    right: 0;
}

.arrow::after {
    content: "";
    display: block;
    width: 6px;
    height: 1px;
    background: #707070;
    transform: rotate(45deg);
    position: absolute;
    right: 0px;
    bottom: 2px;
}


@media screen and (max-width: 1024px) {
    .news_list_item a {
        display: block;
    }
}

@media screen and (max-width: 769px) {
    .news_list_item a {
        font-size: 14px;
    }
}

@media screen and (max-width: 480px) {
    .arrow {
        display: none;
    }

    .news_list_item a {
        padding-right: 0;
    }
}


/* NEWS VIEWER */

.news-header {
    width: calc(100% - 40px);
    /* background:rgba(0, 0, 0, 0.1); */
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: 0 20px;
    backdrop-filter: blur(12px);
}

.news-header h2 {
    font-size: 22px;
    padding-top: 20px;
}

.social-share {
    text-align: right;
}

.social-share a {
    display: inline-block;
    cursor: pointer;
    margin: 0 4px;
}

.social-share img{
    width: 25px;
}

.news-detail {
    font-size: 17px;
    padding: 40px 20px;
    margin-bottom: 40px;
}

.news-detail a {
    color: rgba(255,255,255,1);
}

.news-detail img {
    display: block;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
}

.news-detail p {
    margin: 0.2em 0;
}

.page-section {
    max-width: 90%;
    margin: 0 auto;
}

/* ABOUT */

.about-imgp {
    display: flex;
    position: relative;
    margin: 15px 0;
}

.about-pic {
    width: 100%;
    aspect-ratio: 16/9;
    max-height: 50vh;
    object-fit: cover;
    margin: 0;
}

.about-section {
    position: relative;
    width: 90%;
    margin: 50px auto;
    padding: 0;
}

.about-txt p,
.about-txt a,
.about-section table {
    color: white;
    font-size: 16px;
    margin: 30px;
    bottom: 0;
}

.about-section h2 {
    font-size: 30px;
    margin-top: 50px;
}

.about-txt {
    margin: 25px;
}

.about-txt h3 {
    font-size: 25px;
    margin: 0;
}

.about-txt p,
.about-txt a {
    margin: 20px 0;
}

.about-img {
    width: 50%;
    max-width: 50vh;
    aspect-ratio: 1/1;
    object-fit: cover;
}

.about-logo {
    width: 150px;
    opacity: 0.5;
    position: absolute;
    right: 0;
    bottom: 20px;
}

.skill-body h3 {
    font-size: 20px;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.skill-item {
    align-items: center;
    margin: 15px 30px;
    text-align: center;
    position: relative;
}

.skill-img {
    width: 75px;
    height: 75px;
    background: rgba(255, 255, 255, 1);
    border-radius: 50%;
    padding: 10px;
    display: flex;
    margin: 0 auto;
    justify-content: center;
    align-items: center;
}

.skill-img img {
    max-width: 80%;
    max-height: 80%;
}

/* ============= forms ============== */

.video_pcs {
    text-align: center;
    padding: 0;
    margin: 0 auto;
}

.video_pcs li {
    width: 300px;
    display: inline-block;
    vertical-align: top;
    border: 1px white solid;
    border-bottom: transparent;
    border-right: transparent;
    padding: 15px;
    margin: 30px 10px;
}

.video_pcs img {
    background-color: white;
    width: 300px;
    height: calc(300px * 9/16);
    object-fit: cover;
}


.video_pcs img:hover {
    filter: opacity(50%);
    transform: scale(1.1);
    transition: 0.3s;
}


.video_pcs time {
    font-size: 15px;
    display: block;
    text-align: left;
}

.videoClickArea {
    text-decoration: none;
    color: white;
}

.video_title {
    margin: 0px 0px;
    font-size: 17px;
    text-decoration: none;
}

.video_tag_youtube {
    margin: 5px 0px;
    font-size: 15px;
    border-radius: 14px;
    width: 7em;
    text-align: center;
    background: rgba(255, 0, 0, 0.719);
}

.video_tag_officialsite {
    margin: 5px 0px;
    font-size: 15px;
    border-radius: 14px;
    width: 7em;
    text-align: center;
    background: rgba(55, 55, 55, 0.719);
}

.video_tag_membership {
    margin: 5px 0px;
    font-size: 15px;
    border-radius: 14px;
    width: 7em;
    text-align: center;
    background: linear-gradient(45deg, rgba(182, 123, 3, 0.8) 0%, rgba(218, 175, 8, 0.8) 45%, rgba(231, 210, 138, 0.8) 70%, rgba(218, 175, 8, 0.8) 85%, rgba(182, 123, 3, 0.8) 90% 100%);
}




/* ============= forms ============== */

.forms {
    text-align: center;
}


/* ============= scroll_fade ============== */

.scrollFade {
    opacity: 0;
    transform: translate(0, 50px);
    transition: all 1s;
}

.scrollFade.active {
    opacity: 1;
    transform: translate(0, 0);
}



.pagination {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.pagination a,
.pagination span {
    margin: 0 5px;
    padding: 5px 10px;
    text-decoration: none;
    color: #ffffff;
}

.pagination a:hover {
    background-color: #950000;
}

.pagination span {
    font-weight: bold;
}

.filter-form {
    width: 100%;
    display: flex;
    justify-content: flex-end;
    position: relative;
    right: 50px;
}

select::-ms-expand {
    display: none;
}

.filter-form:after {
    content: '<>';
    font: 17px "Consolas", monospace;
    color: #333;
    -webkit-transform: rotate(90deg);
    -moz-transform: rotate(90deg);
    -ms-transform: rotate(90deg);
    -o-transform: rotate(90deg);
    transform: rotate(90deg);
    right: 11px;
    top: 8px;
    padding: 0 0 2px;
    border-bottom: 1px solid #999;
    position: absolute;
    pointer-events: none;
}

.filter-form select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    display: block;
    width: 100%;
    max-width: 170px;
    height: 29px;
    float: right;
    margin: 5px 0px;
    padding: 0px 24px;
    font-size: 16px;
    line-height: 1.75;
    color: black;
    background-color: white;
    background-image: none;
    border: 1px solid #cccccc;
    -ms-word-break: normal;
    word-break: normal;
}


.description {
    width: 80%;
    margin: 0 auto;
    padding-bottom: 40px;
}

.description h1 {
    margin-top: 50px;
}

.description h2 {
    margin-top: 50px;
}

/*============ FAQ ============*/

.qa {
    max-width: 100%;
    margin: 0 auto;
    padding: 24px 0;
    border-bottom: 1px solid white;
}

.qa summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    padding: 1em 2em 1em 3em;
    color: white;
    font-size: 16px;
    cursor: pointer;
}

.qa summary::-webkit-details-marker {
    display: none;
}

.qa summary::before,
.qa p::before {
    position: absolute;
    left: 1em;
    font-weight: bold;
    font-size: 1.3em;
}

.qa summary::before {
    color: white;
    content: "Q";
}

.qa summary::after {
    transform: translateY(-25%) rotate(45deg);
    width: 7px;
    height: 7px;
    margin-left: 10px;
    border-bottom: 3px solid #707070;
    border-right: 3px solid #707070;
    content: '';
    transition: transform .5s;
}

.qa[open] summary::after {
    transform: rotate(225deg);
}

.qa p {
    font-size: 15px;
    position: relative;
    transform: translateY(-10px);
    opacity: 0;
    margin-top: 25px;
    margin-bottom: 0;
    padding: .3em 3em 1.5em;
    color: white;
    transition: transform .5s, opacity .5s;
}

.qa[open] p {
    transform: none;
    opacity: 1;
}

.qa p::before {
    color: red;
    line-height: 1.2;
    content: "A";
}


.contact-form {
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 80%;
    max-width: 900px;
    margin: 0 auto;
    font-size: 15px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-top: 40px;
    margin-bottom: 20px;
    font-weight: bold;
    font-size: 20px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea,
.form-group input[type="file"] {
    font-size: 15px;
    width: 100%;
    padding: 12px;
    border: 1px solid white;
    box-sizing: border-box;
}

.form-group textarea {
    resize: vertical;
    width: 100%;
    height: 200px;
    font-size: 18px;
}

.radio-group {
    display: flex;
    margin-bottom: 10px;
    align-items: center;
    padding: 0 25px;
    border: solid 1px white;

}

.radio-group label {
    width: 100%;
    display: block;
    margin-left: 20px;
    font-size: 16px;
    margin-top: 17px;
    margin-bottom: 17px;
}

.contact-subtitle {
    font-weight: normal;
    font-size: 13px;
    margin: 0;
}

.radio-group input[type="radio"] {
    width: 15px;
    height: 15px;
    vertical-align: middle;
}

.form-group button {
    background-color: white;
    color: black;
    padding: 5px 15px;
    border: none;
    cursor: pointer;
    font-size: 20px;
    font-weight: bold;
    transition: 0.3s;
}

.form-group button:hover {
    background-color: black;
    color: white;
}


.bg {
    animation: slide 4s ease-in-out infinite alternate;
    background-image: linear-gradient(-65deg, #000000 50%, #402408 50%);
    bottom: 0;
    left: -50%;
    opacity: 0.2;
    position: fixed;
    right: -50%;
    top: 0;
    z-index: -50;
}

.bg2 {
    animation-direction: alternate-reverse;
    animation-duration: 14s;
}

.bg3 {
    animation-duration: 16s;
}

@keyframes slide {
    0% {
        transform: translateX(-25%);
    }

    100% {
        transform: translateX(25%);
    }
}

.vplayer_container {
    width: 80%;
    max-width: 840px;
    margin-top: 50px;
    margin-left: auto;
    margin-right: auto;
}

.vplayer_container h2 {
    text-align: center;
    font-size: 25px;
    margin-top: 20px;
    margin-bottom: 20px;
}

.vplayer_description {
    margin-top: 10px;
    padding-top: 10px;
    padding-bottom: 0;
    padding-left: 5px;
    padding-right: 5px;
}

.vplayer_description p{
    margin-top: 25px;
    line-height: 2;
    margin-left: 10px;
    padding-bottom: 20px;
}

.vplayer_description summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    color: white;
    font-size: 22px;
    cursor: pointer;
    margin-bottom: 20px;
    margin-top: 10px;
    margin-left: 10px;
}

.vplayer_description summary::-webkit-details-marker {
    display: none;
}


.vplayer_description summary::after {
    transform: translateY(-25%) rotate(45deg);
    width: 7px;
    height: 7px;
    margin-right: 10px;
    border-bottom: 3px solid #707070;
    border-right: 3px solid #707070;
    content: '';
    transition: transform .5s;
}

.vplayer_description[open] summary::after {
    transform: rotate(225deg);
}

.vplayer_description[open] p {
    transform: none;
    opacity: 1;
}

.video_area {
    width: 100%;
    aspect-ratio: 16/9;
}

.datesrc_area {
    display: flex;
    align-items: center;
    margin-top: 10px;
    margin-bottom: 10px;
}

.datesrc_area time {
    font-size: 19px;
    margin-right: 20px;
}



/* MY PAGE  */

.mypage {
    width: 80%;
    margin: 50px auto;
}

.mypage h2 {
    text-align: center;
    font-size: 25px;
}

.mypage h3 {
    text-align: center;
    font-size: 20px;
}

.mypageinfo {
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: fit-content;
    position: relative;
    gap: 50px;
    margin: 15px auto;
}

.mypageinfo img {
    width: 140px;
    height: auto;
    display: block;
}

.mypage-links {
    font-size: 16px;
    display: flex;
    width: fit-content;
    position: relative;
    gap: 50px;
    margin: 15px auto;
}

.mypage-links a {
    color: white;
}




/*  VIDEO PLAYER  */
.video_player {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 20px auto;
    background: black;
}

/* 動画 */
.video_area {
    width: 100%;
    height: auto;
    display: block;
}

/* 初期状態を暗く */
.video_area.dim {
    filter: brightness(80%);
}

/* 中央の再生／一時停止ボタン */
#playPauseBtn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 64px;
    height: 64px;
    background: url('../img/play_icon.png') center center no-repeat;
    background-size: contain;
    cursor: pointer;
    z-index: 3;
    transition: opacity 0.5s ease;
    opacity: 1;
}

/* コントロールバー */
#playerControls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    padding: 8px 12px;
    background: none;
    opacity: 1;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

#playerControls.hidden {
    opacity: 0;
}

#playerControls > * {
    pointer-events: auto;
}

/* 進捗バーエリア */
#progressBarContainer {
    flex: 1;
    height: 6px;
    background-color: #888;
    border-radius: 3px;
    cursor: pointer;
    overflow: hidden;
}

#progressBar {
    height: 100%;
    width: 0%;
    background-color: red;
    transition: width 0.1s linear;
}

/* 音量ボタン */
#volumeBtn {
    width: 24px;
    height: 24px;
    background: url('../img/volume_icon.png') center center no-repeat;
    background-size: contain;
    cursor: pointer;
    margin-left: 10px;
}

#volumeBtn.muted {
    background-image: url('../img/volumemute.png');
}

/* フルスクリーンボタン */
#fullscreenBtn {
    width: 24px;
    height: 24px;
    background: url('../img/fullscreen_icon.png') center center no-repeat;
    background-size: contain;
    cursor: pointer;
    margin-left: 10px;
}