/* --- 全体 --- */
.info {
  max-width: 1000px;
  margin: 0 auto;
  padding: auto 20px;
  font-family: "Segoe UI", sans-serif;
  color: #333;
}

.title_info, .title_sr {
  text-align: center;
  font-size: 1.8em;
  color: #005ea8;
  margin-bottom: 10px;
}

.caption_sr {
  text-align: center;
  margin-bottom: 30px;
  color: #444;
  line-height: 1.6;
}

/* アコーディオン基本設定 */
.accordion-item {
  border: 1px solid #ddd;
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
}

.accordion-title {
  display: block;
  background-color: #0074c2;
  color: white;
  padding: 12px 18px;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s;
}

.accordion-title:hover {
  background-color: #005b96;
}

.accordion-content {
  display: none;
  padding: 20px;
  background: #f9f9f9;
}

.accordion-toggle:checked + .accordion-title + .accordion-content {
  display: block;
}

/* チェックボックスを完全に非表示 */
.accordion-toggle {
  display: none;
}

/* アコーディオンタイトル右に矢印を表示 */
.accordion-title::after {
  content: "▼";
  float: right;
  transition: transform 0.3s;
}

/* 開いたときに矢印を上向きに回転 */
.accordion-toggle:checked + .accordion-title::after {
  transform: rotate(180deg);
}


/* グリッド配置（2×2） */
.student-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.student-box {
  background: white;
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  text-align: center;
  align-items: center;
}

.student-box h4 {
  color: #0074c2;
  margin-bottom: 10px;
}

/* 写真・動画・PDF */
.student-photo {
  width: 100%;
  max-width: 100px;
  border: 1px solid #ccc;
  border-radius: 8px;
  margin-bottom: 10px;
  
}

.video-wrapper video {
  width: 100%;
  border-radius: 8px;
}

.letter-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
}

.letter-thumb {
  width: 100%;
  max-width: 150px;
  border: 1px solid #ccc;
  border-radius: 8px;
  margin-bottom: 10px;
}

.letter-link span {
  color: #0074c2;
  font-weight: bold;
}

/* プロフィール文 */
.student-profile {
  line-height: 1.6;
  color: #333;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .student-grid {
    grid-template-columns: 1fr;
  }
  .student-box p {
  font-size: 0.8em;
  }
}


/* --- アコーディオン --- */
/*
.accordion-item {
  margin-bottom: 15px;
  border: 1px solid #bcd4e6;
  border-radius: 10px;
  overflow: hidden;
  background: #f8fbff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.accordion-title {
  display: block;
  background: #0078d4;
  color: #fff;
  padding: 15px 20px;
  font-size: 1.1em;
  cursor: pointer;
  transition: background 0.3s;
}
.accordion-title:hover {
  background: #005ea8;
}

.accordion-toggle {
  display: none;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: all 0.4s ease;
  background: #fff;
  padding: 0 20px;
}

.accordion-toggle:checked + .accordion-title + .accordion-content {
  max-height: 1000px;
  padding: 20px;
}
*/

/* --- 2×2レイアウト --- */
/*
.student-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, auto);
  gap: 20px;
}

.student-box {
  background: #f0f8ff;
  border-radius: 8px;
  padding: 15px;
  text-align: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

.student-box h4 {
  color: #005ea8;
  margin-bottom: 10px;
}

.student-photo {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.pdf-link {
  display: inline-block;
  background: #0078d4;
  color: #fff;
  padding: 10px 18px;
  border-radius: 6px;
  text-decoration: none;
  transition: 0.3s;
}
.pdf-link:hover {
  background: #005ea8;
}
/*

/* --- 動画 --- */
/*
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 8px;
}
.video-wrapper iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  border: none;
}
*/

/* --- レスポンシブ --- */
/*
@media (max-width: 768px) {
  .student-grid {
    grid-template-columns: 1fr;
  }
  .student-box p {
  font-size: 0.8em;
}
}
*/


@media screen and (min-width:1024px) {
    /*whole*/
    *{
        font-family: "Poppins", Sans-serif;;
    }
    html, body{
        margin:0;
        padding:0;
    }
    body{
        position: relative;
    }

    /*header*/
    .site-header{
        width: 100%;
        background: #fff;
        padding: 0.5em;
        top: 0;
        transition: .5s;
        z-index: 999;
        opacity: 0.9;
    }
    .nav{
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .nav li:last-child{
        margin-right:1.5em;
        padding: 0.5em;
    }
    .nav_item{
        width: 30%;
        list-style-type: none;
        font-size:1.3em;
        color: black;
        font-weight: bold;
    }
    .nav_item img{
        width: 100%;
    }
    .nav li:last-child{
        margin-right:1.5em;
        padding: 0.5em;
    }
    .nav_item a:hover{
        text-decoration: none;
        opacity: 0.7;
    }

    /********contents********/
    .main{
        width: 100%;
    }
    

    /*****title*****/
    .headline{
        width: 100%;
        height: 40vw;
        margin: 0.5em 0;
        display: flex;
    }
    .left_headline{
        width: 50%;
        height: 40vw;
        background-color: #99CFFF;
        z-index: 100;
        position: relative;
    }
    .left_headline::after{
        position: absolute;
        content: '';
        right: -14.9vh;
        border-bottom: 40vw solid transparent;
        border-left: 15vh solid #99CFFF;
    }
    .right_headline{
        width: 50%;
        position: relative;
        height: 40vw;
        background-image: url(headline.jpg);
        background-size: 130%;
        background-repeat: no-repeat;
        background-position: -16px 85%;
    }
    .right_headline::before{
        content: '';
        background-color: rgba(0,0,0,.4);
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
    }
    .title_headline{
        width: 90%;
        margin: 0.5em auto;
        text-align: center;
        position: absolute;
        top:50%;
        left: 54%;
        transform: translate(-50%, -50%);
    }
    .title_headline span{
        font-family: 'PT Serif', serif;
        font-size: 4.0em;
        font-weight: 900;
        letter-spacing: 0.1em;
        line-height: 1.5em;
        color: #fff;
    }






 /****essay****/
 .title_essay{
    width: 95%;
    margin: 5.0em auto 4.0em;
    text-align: center;
    position: relative;
}
.title_essay::after{
    position: absolute;
    content: '';
    width: 70vh;
    height: 1px;
    bottom: -2vw;
    right: 50%;
    transform: translate(50%, 50%);
    background-color: #99CFFF;
}
.title_essay span{
    font-family: 'Playfair Display', serif;
    font-size: 2.0em;
    font-weight: 900;
    letter-spacing: 0.1em;
    line-height: 1.5em;
    color: #6495ED;
}
.e_flex_acd_sr{
    display: flex;
    overflow-x: scroll;
    white-space: nowrap;
    justify-content: center;
}
.e_item_flex_sr{
    width: 30%;
    margin: 1.0em;
    padding: 1.0em 2.0em;
}

.e_item_flex_sr:first-child{
    /*padding-left: 20px;*/
    padding-right: 100px;
    border-right: 2px solid #99CFFF;

}
.e_image_acd_sr{
    width: 100%;
    margin: 0 auto;
    text-align: center;
}
.e_image_acd_sr img{
    width: 20vw;
    border: 2px solid #333;
}
.e_date_acd_sr{
    width: 100%;
    margin: 1.5em auto 0;
    text-align: center;
    /*padding-left: 25px;*/
}
.e_date_acd_sr p{
    font-size: 1.0em;
    line-height: 1.6em;
}
.e_date_acd_sr p:first-child{
    font-weight: 900;
}
 
 /*****button*****/
    .button_valentina{
        width: 65%;
        margin: 1.5em auto;
        text-align: center;
    }
    .button_valentina button{
        width: 95%;
        margin: 0 auto;
        padding: 1.0em 1.5em;
        border: 2px solid #99CFFF;
        background-color: #6495ED;
        border-radius: 10px;
        position: relative;
        transition: all .5s;
    }
    .button_valentina button:hover{
        top:-3px;
        box-shadow: 0 2px 3px rgba(0, 0, 0, 0.3);
    }
    .button_valentina button p{
        font-size: 1.2em;
        font-weight: 700;
        color: #fff;
    }
    /*****screen*****/
    .screen{
        width: 90%;
        margin: 6.0em auto 2.0em;
    }
    .title_screen{
        width: 95%;
        margin: 5.0em auto 4.0em;
        text-align: center;
        position: relative;
    }
    .title_screen::after{
        position: absolute;
        content: '';
        width: 70vh;
        height: 1px;
        bottom: -2vw;
        right: 50%;
        transform: translate(50%, 50%);
        background-color: #99CFFF;
    }
    .title_screen span{
        font-family: 'Playfair Display', serif;
        font-size: 2.0em;
        font-weight: 900;
        letter-spacing: 0.1em;
        line-height: 1.5em;
        color: #6495ED;
    }
    .contents_screen{
        width: 100%;
        margin: 2.5em 0;
    }
    .caption_screen{
        width: 90%;
        margin: 0 auto;
        text-align: left;
    }
    .caption_screen p{
        font-size: 1.2em;
        line-height: 1.5em;
    }
    .flex_screen{
        width: 90%;
        margin: 2.0em auto;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .photo_screen{
        width: 40%;
        padding: 1.0em;
        text-align: center;
    }
    .image_screen{
        width: 90%;
        box-shadow: 0 0 5px #333;
    }
    .profile_screen{
        width: 60%;
        padding: 1.0em;
    }
    .title_profile_screen{
        width: 90%;
        margin: 2.5em auto 0.5em;
        text-align: center;
        
    }
    .title_profile_screen span{
        font-family: 'Playfair Display', serif;
        font-size: 1.8em;
        font-weight: 900;
        letter-spacing: 0.1em;
        color: #f00;
    }
    .contents_profile_screen{
        width: 95%;
        margin: 1.5em auto;
    }
    .item_profile_screen{
        margin: 0.5em auto;
        font-family: 'Playfair Display', serif;
        font-size: 0.8em;
        text-align: center;
        font-weight: 600;
        color: #f00;
    }
    .caption_profile_screen{
        width: 100%;
        margin: 1.5em auto;
    }
    .caption_profile_screen p{
        font-size: 1.2em;
        line-height: 1.5em;
    }

    /*****sr*****/
    .sr{
        width: 90%;
        margin: 2.5em auto;
    }
    .title_sr{
        width: 25%;
        margin: 0.5em 0 0.5em 1.0em;
        padding: 0.5em 1.0em;
        position: relative;
        border: 4px solid #90cafd;
        text-align: center;
    }
    .title_sr::after{
        position: absolute;
        content: '';
        background-color: #d5ebfe;
        width: calc(100% + 3px);
        height: calc(100% + 3px);
        top: -7px;
        left: 4px;
        z-index: -1;
    }
    .title_sr span{
        font-size: 1.5em;
        font-weight: 900;
        color: #222;
    }
    .caption_sr{
        width: 90%;
        margin: 1.5em auto;
    }
    .caption_sr p{
        font-size: 1.2em;
        line-height: 1.5em;
    }
    .acd_sr{
        width: 85%;
        margin: 1.0em auto;
    }
    .item_acd_sr{
        width: 90%;
        margin: 0 auto;
    }
    .title_acd_sr{
        width: 100%;
        position: relative;
        padding: 1.0em 4.0em;
        border-bottom: 1px solid #fff;
        cursor: pointer;
        background-color: #75b1ff;
    }
    .acd_sr>.item_acd_sr:first-child .title_acd_sr{
        border-top: 1px solid #fff;
    }
    .title_acd_sr::before{
        background: #fff; 
        content: "";
        height: 2px; 
        position: absolute;
        right: 40px;
        top: 50%; 
        transform: rotate(90deg); 
        transition: .3s ease-in-out;
        width: 15px; 
    }
    .title_acd_sr::after{
        background: #fff; 
        content: "";
        height: 2px; 
        position: absolute;
        right: 40px;
        top: 50%; 
        transition: .3s ease-in-out;
        width: 15px; 
    }
    .title_acd_sr.open::before{
        transform: rotate(180deg);
    }
    .title_acd_sr.open::after{
        opacity: 0;
    }
    .title_acd_sr span{
        font-size: 1.3em;
        font-weight: 900;
        color: #fff;
    }
    .contents_acd_sr{
        display: none;
        border-left: 1px solid #75b1ff;
        border-right: 1px solid #75b1ff;
    }
    .contents_acd_sr:last-child{
        border-bottom: 1px solid #75b1ff;
    }
    .flex_acd_sr{
        display: flex;
        overflow-x: scroll;
        white-space: nowrap;
    }
    .item_flex_sr{
        width: 30%;
        margin: 1.0em;
        padding: 1.0em 2.0em;
    }
    .image_acd_sr{
        width: 100%;
        margin: 0 auto;
        text-align: center;
    }
    .image_acd_sr img{
        width: 12vw;
        border: 2px solid #333;
    }
    .date_acd_sr{
        width: 100%;
        margin: 1.5em auto 0;
        text-align: center;
    }
    .date_acd_sr p{
        font-size: 1.0em;
        line-height: 1.6em;
    }
    .date_acd_sr p:first-child{
        font-weight: 900;
    }
    .note_sr{
        width: 85%;
        margin: 1.5em auto;
    }
    .item_note_sr{
        width: 100%;
        list-style-type: none;
        line-height: 1.5em;
        font-size: 1.2em;
    }
    .item_note_sr::before{
        content: '※';
    }
    .list_note_sr{
        width: 85%;
        margin: 1.5em auto;
        padding: 1.0em 2.0em;
        border: 1px dotted #99CFFF;
    }
    .item_list_sr{
        font-size: 1.2em;
        line-height: 1.5em;
    }
    .item_list_sr:not(:last-of-type)::after{
        content: '／';
    }
    /**********/


    /*****comment*****/
    .comment{
        width: 100%;
        margin: 4.0em auto;
        padding: 1.5em 2.0em 2.0em;
        text-align: center;
        background-color: #99CFFF;
        position: relative;
    }
    .comment::before{
        position: absolute;
        content: '';
        border-bottom: 50px solid #99CFFF;
        border-left: 100vw solid transparent;
        left: 0;
        top: -50px;
    }
    .comment p{
        font-size: 1.5em;
        font-weight: 900;
        line-height: 1.5em;
        color: #fff;
    }
    /*****info*****/
    .info{
        width: 90%;
        margin: 5.0em auto 7.0em;
    }
    .title_info{
        width: 30%;
        margin: 4.0em auto;
        text-align: center;
        position: relative;
    }
    .title_info::after{
        position: absolute;
        content: '';
        width: 35vh;
        height: 1px;
        bottom: -3vw;
        right: 50%;
        transform: translate(50%, 50%);
        background-color: #99CFFF;
    }
    .title_info span{
        font-family: 'Playfair Display', serif;
        font-size: 2.0em;
        font-weight: 900;
        letter-spacing: 0.1em;
        color: #6495ED;
    }
    .contents_info{
        width: 90%;
        margin: 6.5em auto;
    }
    .swiper_info{
        width: 100%;
        height: 50vw;
        margin: 0 auto;
        padding: 0 3.0em;
        position: relative;
        overflow: hidden;
    }
    .swiper-slide{
        height: auto;
        display: flex;
    }
    .item_swiper_info{
        width: 100%;
        height: auto;
        padding: 0 1.0em;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translateY(-50%) translateX(-50%);
    }
    .photo_swiper_info{
        width: 95%;
        margin: 0 auto;
        text-align: center;
    }
    .image_swiper_info{
        width: 100%;
        box-shadow: 0 0 10px #333;
    }
    .prev1{
        position: absolute;
        left: 25px;
        top: 50%;
        transform: translate(-50%, -50%);
        --swiper-navigation-color: #333;
    }
    .next1{
        position: absolute;
        right: 0;
        top: 50%;
        transform: translate(-50%, -50%);
        --swiper-navigation-color: #333;
    }
    .next1::after,
    .prev1::after{
        font-size: 1.5em;
    }
    .contents_info .swiper-pagination-bullets{
        bottom: 0;
    }
    .title_swiper_info{
        width: 95%;
        margin: 2.5em auto;
        text-align: center;
    }
    .title_swiper_info span{
        font-size: 1.5em;
        font-weight: 900;
        letter-spacing: 0.1em;
    }

    /*fade*/
    .fade-in{
        opacity: 0;
        transition-duration: 500ms;
        transition-property: opacity, transform;
    }
    .fade-in-up {
        transform: translate(0, 50px);
    }
    .fade-in-down {
        transform: translate(0, -50px);
    }
    .fade-in-left{
        transform: translate(-50px, 0);
    }
    .fade-in-right {
        transform: translate(50px, 0);
    }
    .scroll-in {
        opacity: 1;
        transform: translate(0, 0);
    }

    /*smooth scroll*/
    .topbtn{
        right: 40px;
        background: #333;
        opacity: 0.6;
        border-radius: 50%;
        display: block;
        width: 70px;
        height: 70px;
        text-decoration: none;
    }
    .topbtn::before{
        font-family: 'Font Awesome 5 Free';
        font-weight: 900;
        content: '\f102';
        font-size: 25px;
        color: #fff;
        position: absolute;
        width: 25px;
        height: 25px;
        top: -5px;
        bottom: 0;
        right: 0;
        left: 0;
        margin: auto;
        text-align: center;
    }

    /*footer*/
    .site-footer{
        position: relative;
        margin-top: 2.4em;
        color: #fff;
    }
    .site-footer a{
        text-decoration: none;
        color: #fff;
    }
    .site-footer .top-section{
        padding: 1.6em 0.9em;
        background-color: #333;
    }
    .site-footer .top-section .flex{
        display: flex;
        justify-content: center;
    }
    .site-footer .top-section .flex .left{
        width: 50%;
        margin-left: 10vw;
    }
    .site-footer .footer-logo{
        position: relative;
        padding: 0;
        margin: 0;
        width: 100%;
        font-size: 2.2em;
        font-weight: bold;
    }
    .address{
        margin: 0.8em 0 0;
        padding: 0;
    }
    .site-footer .sns{
        margin: 1.2em 0 0 2.5em;
        padding: 0;
    }
    .site-footer .sns li{
        display: inline-block;
        margin: 0 1.2em 0 0;
        padding: 0;
        font-size: 2.2em;
    }
    .site-footer .sns li:last-child{
        margin-right: 0;
    }
    .site-footer .sns li a{
        transition: all 0.5s;
    }
    .site-footer .sns li a:hover{
        opacity: 0.7;
        transform:scale(1.2, 1.2)
    }
    .site-footer .top-section .flex .right{
        display: flex;
        width: 70%;
    }
    .navi-section{
        display: flex;
        flex-direction: column;
        width: 50%;
        margin-left: 6vw;
    }
    .title-section{
        width: 15vw;
        min-width: 30px;
        padding: 0.5rem 2rem;
        border-top: 3px solid white;
        border-bottom: 3px solid white;
        text-align: center;
        margin: 1em 0;
    }
    .site-footer .navi-list{
        margin: 0;
        padding: 0;
        list-style: none;
        line-height: 2em;
    }
    .site-footer .navi-list li{
        margin: 0.5em 0 0 0;
        padding: 0;
    }
    .site-footer .navi-list li:first-child{
        margin: 0;
    }
    .site-footer .navi-list a:hover,
    .site-footer .title-list a:hover{
        text-decoration: none;
        opacity: 0.7;
    }
    .site-footer .title-list{
        margin: 0 0 0.9em 0;
        padding: 0;
        font-weight: bold;
        line-height: 2em;
    }
    .site-footer .bottom-section{
        display: flex;
        justify-content: center;
        padding: 1.6em 0.9em;
        background: #222;
    }
    .site-footer .copyright{
        width: 90%;
        margin: 0;
        padding: 0;
        text-align: center;
    }  
}









@media screen and (min-width:768px) and (max-width:1023px) {
    /*whole*/
    *{
        font-family: 'Noto Sans JP', sans-serif;
    }
    html, body{
        margin:0;
        padding:0;
    }
    body{
        position: relative;
    }

    /*header*/
    .site-header{
        width: 100%;
        top: 0;
        transition: .5s;
        z-index: 999;
        margin: 1.0em auto;
    }
    .nav{
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .nav li:last-child{
        margin-right:1.5em;
        padding: 0.5em;
    }
    .nav_item{
        list-style-type: none;
        font-size:1.2;
        font-weight: bold;
        color: black;
        width: 40%;
    }
    .nav_item a:hover{
        text-decoration: none;
        opacity: 0.7;
    }
    .nav_item img{
        width: 100%;
    }

    /********contents********/
    .main{
        width: 100%;
    }
    /*****title*****/
    .headline{
        width: 100%;
        height: 40vw;
        margin: 0.5em 0;
        display: flex;
    }
    .left_headline{
        width: 55%;
        height: 40vw;
        background-color: #99CFFF;
        z-index: 100;
        position: relative;
    }
    .left_headline::after{
        position: absolute;
        content: '';
        right: -5.9vh;
        border-bottom: 40vw solid transparent;
        border-left: 6vh solid #99CFFF;
    }
    .right_headline{
        width: 45%;
        position: relative;
        height: 40vw;
        background-image: url(headline.jpg);
        background-size: 135%;
        background-repeat: no-repeat;
        background-position: -22px 0;
    }
    .right_headline::before{
        content: '';
        background-color: rgba(0,0,0,.4);
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
    }
    .title_headline{
        width: 90%;
        margin: 0.5em auto;
        text-align: center;
        position: absolute;
        top:50%;
        left: 54%;
        transform: translate(-50%, -50%);
    }
    .title_headline span{
        font-family: 'PT Serif', serif;
        font-size: 2.5em;
        font-weight: 900;
        letter-spacing: 0.1em;
        line-height: 1.5em;
        color: #fff;
    }

    /*******sr*******/
    .sr{
        width: 93%;
        margin: 2.5em auto;
    }
    .title_sr{
        width: 30%;
        margin: 0.5em 0 0.5em 1.0em;
        padding: 0.5em 1.0em;
        position: relative;
        border: 3px solid #90cafd;
        text-align: center;
    }
    .title_sr::after{
        position: absolute;
        content: '';
        background-color: #d5ebfe;
        width: calc(100% + 3px);
        height: calc(100% + 3px);
        top: -7px;
        left: 4px;
        z-index: -1;
    }
    .title_sr span{
        font-size: 1.3em;
        font-weight: 900;
        color: #222;
    }
    .caption_sr{
        width: 90%;
        margin: 1.5em auto;
    }
    .caption_sr p{
        font-size: 1.0em;
        line-height: 1.5em;
    }
    .acd_sr{
        width: 85%;
        margin: 1.0em auto;
    }
    .item_acd_sr{
        width: 90%;
        margin: 0 auto;
    }
    .title_acd_sr{
        width: 100%;
        position: relative;
        padding: 1.0em 3.0em;
        border-bottom: 1px solid #fff;
        cursor: pointer;
        background-color: #75b1ff;
    }
    .acd_sr>.item_acd_sr:first-child .title_acd_sr{
        border-top: 1px solid #fff;
    }
    .title_acd_sr::before{
        background: #fff; 
        content: "";
        height: 2px; 
        position: absolute;
        right: 40px;
        top: 50%; 
        transform: rotate(90deg); 
        transition: .3s ease-in-out;
        width: 15px; 
    }
    .title_acd_sr::after{
        background: #fff; 
        content: "";
        height: 2px; 
        position: absolute;
        right: 40px;
        top: 50%; 
        transition: .3s ease-in-out;
        width: 15px; 
    }
    .title_acd_sr.open::before{
        transform: rotate(180deg);
    }
    .title_acd_sr.open::after{
        opacity: 0;
    }
    .title_acd_sr span{
        font-size: 1.2em;
        font-weight: 900;
        color: #fff;
    }
    .contents_acd_sr{
        width: 100%;
        display: none;
        border-left: 1px solid #75b1ff;
        border-right: 1px solid #75b1ff;
    }
    .contents_acd_sr:last-child{
        border-bottom: 1px solid #75b1ff;
    }
    .flex_acd_sr{
        display: flex;
        overflow-x: scroll;
        white-space: nowrap;
        padding: 2.0em;
    }
    .item_flex_sr{
        width: 30%;
        margin: 0 1.5em;
    }
    .image_acd_sr{
        width: 80%;
        margin: 0 auto;
    }
    .image_acd_sr img{
        width: 15vw;
        text-align: center;
        border: 2px solid #333;
    }
    .date_acd_sr{
        width: 95%;
        margin: 1.0em auto 0;
        text-align: center;
    }
    .date_acd_sr p{
        font-size: 0.9em;
        line-height: 1.6em;
    }
    .date_acd_sr p:first-child{
        font-weight: 900;
    }
    .note_sr{
        width: 85%;
        margin: 1.5em auto;
    }
    .item_note_sr{
        width: 100%;
        list-style-type: none;
        line-height: 1.5em;
        font-size: 1.0em;
    }
    .item_note_sr::before{
        content: '※';
    }
    .list_note_sr{
        width: 85%;
        margin: 1.5em auto;
        padding: 1.0em 2.0em;
        border: 1px dotted #99CFFF;
    }
    .item_list_sr{
        font-size: 1.0em;
        line-height: 1.5em;
    }
    .item_list_sr:not(:last-of-type)::after{
        content: '／';
    }
    /*************/


    /****essay****/
    .title_essay{
        width: 95%;
        margin: 3.0em auto;
        text-align: center;
        position: relative;
    }
    .title_essay::after{
        position: absolute;
        content: '';
        width: 65vw;
        height: 1px;
        bottom: -3vw;
        right: 50%;
        transform: translate(50%, 50%);
        background-color: #99CFFF;
    }
    .title_essay span{
        font-family: 'Playfair Display', serif;
        font-size: 1.6em;
        font-weight: 900;
        letter-spacing: 0.1em;
        line-height: 1.5em;
        color: #6495ED;
    }
    .e_flex_acd_sr{
        display: flex;
        overflow-x: scroll;
        white-space: nowrap;
        padding: 2.0em;
        justify-content: center;
    }
    .e_item_flex_sr{
        width: 30%;
        margin: 0 1.5em;
    }
    .e_item_flex_sr:first-child{
        border-right: 2px solid #99CFFF;
    }
    .e_image_acd_sr{
        width: 80%;
        margin: 0 auto;
        text-align: center;
    }
    .e_image_acd_sr img{
        width: 20vw;
        text-align: center;
        border: 2px solid #333;
    }
    .e_date_acd_sr{
        width: 95%;
        margin: 1.0em auto 0;
        text-align: center;
    }
    .e_date_acd_sr p{
        font-size: 0.9em;
        line-height: 1.6em;
    }
    .e_date_acd_sr p:first-child{
        font-weight: 900;
    }

    /*****button*****/
    .button_valentina{
        width: 80%;
        margin: 1.5em auto;
        text-align: center;
    }
    .button_valentina button{
        width: 95%;
        margin: 0 auto;
        padding: 1.0em;
        border: 2px solid #99CFFF;
        background-color: #6495ED;
        border-radius: 10px;
        position: relative;
        transition: all .5s;
    }
    .button_valentina button:hover{
        top:-3px;
        box-shadow: 0 2px 3px rgba(0, 0, 0, 0.3);
    }
    .button_valentina button p{
        font-size: 1.0em;
        font-weight: 700;
        color: #fff;
    }
    /*****screen*****/
    .screen{
        width: 90%;
        margin: 3.0em auto 2.0em;
    }
    .title_screen{
        width: 95%;
        margin: 3.0em auto;
        text-align: center;
        position: relative;
    }
    .title_screen::after{
        position: absolute;
        content: '';
        width: 65vw;
        height: 1px;
        bottom: -3vw;
        right: 50%;
        transform: translate(50%, 50%);
        background-color: #99CFFF;
    }
    .title_screen span{
        font-family: 'Playfair Display', serif;
        font-size: 1.6em;
        font-weight: 900;
        letter-spacing: 0.1em;
        line-height: 1.5em;
        color: #6495ED;
    }
    .contents_screen{
        width: 100%;
        margin: 2.5em 0;
    }
    .caption_screen{
        width: 90%;
        margin: 0 auto;
        text-align: left;
    }
    .caption_screen p{
        font-size: 1.0em;
        line-height: 1.5em;
    }
    .flex_screen{
        width: 100%;
        margin: 2.0em auto;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .photo_screen{
        width: 40%;
        padding: 1.0em;
        text-align: center;
    }
    .image_screen{
        width: 90%;
        box-shadow: 0 0 5px #333;
    }
    .profile_screen{
        width: 60%;
    }
    .title_profile_screen{
        width: 90%;
        margin: 2.5em auto 0.5em;
        text-align: center;
    }
    .title_profile_screen span{
        font-family: 'Playfair Display', serif;
        font-size: 1.4em;
        font-weight: 900;
        letter-spacing: 0.1em;
        color: #f00;
    }
    .contents_profile_screen{
        width: 95%;
        margin: 1.5em auto;
    }
    .item_profile_screen{
        margin: 0.5em auto;
        font-family: 'Playfair Display', serif;
        font-size: 0.7em;
        text-align: center;
        font-weight: 600;
        color: #f00;
    }
    .caption_profile_screen{
        width: 100%;
        margin: 1.5em auto;
    }
    .caption_profile_screen p{
        font-size: 1.0em;
        line-height: 1.5em;
    }
    /*****comment*****/
    .comment{
        width: 100%;
        margin: 4.0em auto;
        padding: 1.5em 2.0em 2.0em;
        text-align: center;
        background-color: #99CFFF;
        position: relative;
    }
    .comment::before{
        position: absolute;
        content: '';
        border-bottom: 50px solid #99CFFF;
        border-left: 100vw solid transparent;
        left: 0;
        top: -50px;
    }
    .comment p{
        font-size: 1.2em;
        font-weight: 900;
        line-height: 1.5em;
        color: #fff;
    }






    /*****info*****/
    .info{
        width: 90%;
        margin: 5.0em auto 7.0em;
    }
    .title_info{
        width: 50%;
        margin: 4.0em auto;
        text-align: center;
        position: relative;
    }
    .title_info::after{
        position: absolute;
        content: '';
        width: 25vw;
        height: 1px;
        bottom: -4vw;
        right: 50%;
        transform: translate(50%, 50%);
        background-color: #99CFFF;
    }
    .title_info span{
        font-family: 'Playfair Display', serif;
        font-size: 1.6em;
        font-weight: 900;
        letter-spacing: 0.1em;
        color: #6495ED;
    }
    .contents_info{
        width: 90%;
        margin: 5.0em auto;
    }
    .swiper_info{
        width: 100%;
        height: 70vw;
        margin: 0 auto;
        padding: 0 3.0em;
        position: relative;
        overflow: hidden;
    }
    .swiper-slide{
        height: auto;
        display: flex;
    }
    .item_swiper_info{
        width: 100%;
        height: auto;
        padding: 0 7.5em;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translateY(-50%) translateX(-50%);
    }
    .photo_swiper_info{
        width: 95%;
        margin: 0 auto;
        text-align: center;
    }
    .image_swiper_info{
        width: 100%;
        box-shadow: 0 0 10px #333;
    }
    .prev1{
        position: absolute;
        left: 90px;
        top: 50%;
        transform: translate(-50%, -50%);
        --swiper-navigation-color: #333;
    }
    .next1{
        position: absolute;
        right: 90px;
        top: 50%;
        transform: translate(-50%, -50%);
        --swiper-navigation-color: #333;
    }
    .next1::after,
    .prev1::after{
        font-size: 1.5em;
    }
    .contents_info .swiper-pagination-bullets{
        bottom: 0;
    }
    .title_swiper_info{
        width: 95%;
        margin: 2.5em auto;
        text-align: center;
    }
    .title_swiper_info span{
        font-size: 1.3em;
        font-weight: 900;
        letter-spacing: 0.1em;
    }

    /*fade*/
    .fade-in{
        opacity: 0;
        transition-duration: 500ms;
        transition-property: opacity, transform;
    }
    .fade-in-up {
        transform: translate(0, 50px);
    }
    .fade-in-down {
        transform: translate(0, -50px);
    }
    .fade-in-left{
        transform: translate(-50px, 0);
    }
    .fade-in-right {
        transform: translate(50px, 0);
    }
    .scroll-in {
        opacity: 1;
        transform: translate(0, 0);
    }

    /*smooth scroll*/
    .topbtn{
        right: 40px;
        background: #333;
        opacity: 0.6;
        border-radius: 50%;
        display: block;
        width: 70px;
        height: 70px;
        text-decoration: none;
    }
    .topbtn::before{
        font-family: 'Font Awesome 5 Free';
        font-weight: 900;
        content: '\f102';
        font-size: 25px;
        color: #fff;
        position: absolute;
        width: 25px;
        height: 25px;
        top: -5px;
        bottom: 0;
        right: 0;
        left: 0;
        margin: auto;
        text-align: center;
    }

    /*footer*/
    .site-footer{
        position: relative;
        color: #fff;
    }
    .site-footer a{
        text-decoration: none;
        color: #fff;
    }
    .site-footer .top-section{
        padding: 1.6em 0;
        background-color: #333;
    }
    .site-footer .top-section .flex{
        display: flex;
        justify-content: center;
    }
    .site-footer .top-section .flex .left{
        width: 50%;
        margin-left: 8vw;
    }
    .site-footer .footer-logo{
        position: relative;
        padding: 0;
        margin: 0;
        width: 100%;
        font-size: 2.2em;
        font-weight: bold;
    }
    .address{
        margin: 0.8em 0 0;
        padding: 0;
        line-height: 1.5em;
    }
    .site-footer .sns{
        margin: 1.2em 0 0 2.5em;
        padding: 0;
    }
    .site-footer .sns li{
        display: inline-block;
        margin: 0 1.2em 0 0;
        padding: 0;
        font-size: 2.2em;
    }
    .site-footer .sns li:last-child{
        margin-right: 0;
    }
    .site-footer .sns li a{
        transition: all 0.5s;
    }
    .site-footer .sns li a:hover{
        opacity: 0.7;
        transform:scale(1.2, 1.2)
    }
    .site-footer .top-section .flex .right{
        display: flex;
        width: 70%;
    }
    .navi-section{
        display: flex;
        flex-direction: column;
        width: 50%;
        margin-left: 6vw;
    }
    .title-section{
        width: 19vw;
        min-width: 30px;
        padding: 0.5rem 2rem;
        border-top: 3px solid white;
        border-bottom: 3px solid white;
        text-align: center;
        margin: 1em 0;
    }
    .site-footer .navi-list{
        margin: 0;
        padding: 0;
        list-style: none;
        line-height: 2em;
        font-size: 0.8em;
    }
    .site-footer .navi-list li{
        margin: 0.5em 0 0 0;
        padding: 0;
    }
    .site-footer .navi-list li:first-child{
        margin: 0;
    }
    .site-footer .navi-list a:hover,
    .site-footer .title-list a:hover{
        text-decoration: none;
        opacity: 0.7;
    }
    .site-footer .title-list{
        margin: 0 0 0.9em 0;
        padding: 0;
        font-weight: bold;
        line-height: 2em;
    }
    .site-footer .bottom-section{
        display: flex;
        padding: 1.6em 0.9em;
        background: #222;
    }
    .site-footer .copyright{
        width: 90%;
        margin: 0;
        padding: 0;
        text-align: center;
    }
}









@media screen and (max-width:767px) {
    /*whole*/
    *{
        font-family: 'Noto Sans JP', sans-serif;
    }
    html, body{
        margin:0;
        padding:0;
    }
    body{
        position: relative;
    }

    /*header*/
    .site-header{
        width: 100%;
        margin: 1.0em 0;
        top: 0;
        transition: .5s;
        z-index: 999;
        list-style-type: none;
    }
    .nav_item{
        width: 70%;
        list-style-type:none;
        font-size: small;
        color: #222;
        font-weight: bold;
    }
    .nav_item a:hover{
        text-decoration: none;
        opacity: 0.7;
    }
    .nav_item img{
        width: 100%;
    }

    /********contents********/
    .main{
        width: 100%;
    }
    /*****title*****/
    .headline{
        width: 100%;
        height: 30vh;
        margin: 0.5em 0;
        display: flex;
    }
    .left_headline{
        width: 55%;
        height: 30vh;
        background-color: #99CFFF;
        z-index: 100;
        position: relative;
    }
    .left_headline::after{
        position: absolute;
        content: '';
        right: -5.9vh;
        border-bottom: 30vh solid transparent;
        border-left: 6vh solid #99CFFF;
    }
    .right_headline{
        width: 45%;
        position: relative;
        height: 30vh;
        background-image: url(headline.jpg);
        background-size: cover;
        background-repeat: no-repeat;
        background-position: 0 0;
    }
    .right_headline::before{
        content: '';
        background-color: rgba(0,0,0,.4);
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
    }
    .title_headline{
        width: 90%;
        margin: 0.5em auto;
        text-align: center;
        position: absolute;
        top:46%;
        left: 52%;
        transform: translate(-50%, -50%);
    }
    .title_headline span{
        font-family: 'PT Serif', serif;
        font-size: 1.6em;
        font-weight: 900;
        letter-spacing: 0.1em;
        line-height: 1.5em;
        color: #fff;
    }

    /****essay****/
    .title_essay{
        width: 95%;
        margin: 3.0em auto;
        text-align: center;
        position: relative;
    }
    .title_essay::after{
        position: absolute;
        content: '';
        width: 65vw;
        height: 1px;
        bottom: -3vh;
        right: 50%;
        transform: translate(50%, 50%);
        background-color: #99CFFF;
    }
    .title_essay span{
        font-family: 'Playfair Display', serif;
        font-size: 1.3em;
        font-weight: 900;
        letter-spacing: 0.1em;
        line-height: 1.5em;
        color: #6495ED;
    }
    .e_flex_acd_sr{
        display: flex;
        overflow-x: scroll;
        white-space: nowrap;
        justify-content: center;
    }
    .e_item_flex_sr{
        width: 40%;
        margin: 2.0em;
    }
    .e_item_flex_sr:first-child{
        border-right: solid #99CFFF;
    }
    .e_image_acd_sr{
        width: 80%;
        text-align: center;
        margin: 0 auto;
    }
    .e_image_acd_sr img{
        width: 25vw;
        border: 2px solid #333;
    }
    .e_date_acd_sr{
        width: 100%;
        margin: 1.0em auto 0;
        text-align: center;
    }
    .e_date_acd_sr p{
        font-size: 0.8em;
        line-height: 1.6em;
    }
    .e_date_acd_sr p:first-child{
        font-weight: 900;
    }

    /*******sr*******/
    .sr{
        width: 95%;
        margin: 2.5em auto;
    }
    .title_sr{
        width: 50%;
        margin: 0.5em 0 0.5em 1.0em;
        padding: 0.5em 1.0em;
        position: relative;
        border: 3px solid #90cafd;
        text-align: center;
    }
    .title_sr::after{
        position: absolute;
        content: '';
        background-color: #d5ebfe;
        width: calc(100% + 3px);
        height: calc(100% + 3px);
        top: -7px;
        left: 4px;
        z-index: -1;
    }
    .title_sr span{
        font-size: 1.1em;
        font-weight: 900;
        color: #222;
    }
    .caption_sr{
        width: 90%;
        margin: 1.5em auto;
    }
    .caption_sr p{
        font-size: 0.9em;
        line-height: 1.5em;
    }
    .acd_sr{
        width: 90%;
        margin: 1.0em auto;
    }
    .item_acd_sr{
        width: 90%;
        margin: 0 auto;
    }
    .title_acd_sr{
        width: 100%;
        position: relative;
        padding: 1.0em 2.0em;
        border-bottom: 1px solid #fff;
        background-color: #75b1ff;
    }
    .acd_sr>.item_acd_sr:first-child .title_acd_sr{
        border-top: 1px solid #fff;
    }
    .title_acd_sr::before{
        background: #fff; 
        content: "";
        height: 2px; 
        position: absolute;
        right: 40px;
        top: 50%; 
        transform: rotate(90deg); 
        transition: .3s ease-in-out;
        width: 15px; 
    }
    .title_acd_sr::after{
        background: #fff; 
        content: "";
        height: 2px; 
        position: absolute;
        right: 40px;
        top: 50%; 
        transition: .3s ease-in-out;
        width: 15px; 
    }
    .title_acd_sr.open::before{
        transform: rotate(180deg);
    }
    .title_acd_sr.open::after{
        opacity: 0;
    }
    .title_acd_sr span{
        font-size: 1.0em;
        font-weight: 900;
        color: #fff;
    }
    .contents_acd_sr{
        width: 100%;
        display: none;
        border-left: 1px solid #75b1ff;
        border-right: 1px solid #75b1ff;
        overflow-x: scroll;
    }
    .contents_acd_sr:last-child{
        border-bottom: 1px solid #75b1ff;
    }
    .flex_acd_sr{
        display: flex;
        overflow-x: scroll;
        white-space: nowrap;
    }
    .item_flex_sr{
        width: 40%;
        margin: 2.0em;
    }
    .image_acd_sr{
        width: 80%;
        text-align: center;
        margin: 0 auto;
    }
    .image_acd_sr img{
        width: 25vw;
        border: 2px solid #333;
    }
    .date_acd_sr{
        width: 100%;
        margin: 1.0em auto 0;
        text-align: center;
    }
    .date_acd_sr p{
        font-size: 0.8em;
        line-height: 1.6em;
    }
    .date_acd_sr p:first-child{
        font-weight: 900;
    }
    .note_sr{
        width: 85%;
        margin: 1.5em auto;
    }
    .item_note_sr{
        width: 100%;
        list-style-type: none;
        line-height: 1.5em;
        font-size: 0.9em;
    }
    .item_note_sr::before{
        content: '※';
    }
    .list_note_sr{
        width: 95%;
        margin: 1.5em auto;
        padding: 1.0em;
        border: 1px dotted #99CFFF;
    }
    .item_list_sr{
        font-size: 0.9em;
        line-height: 1.5em;
    }
    .item_list_sr:not(:last-of-type)::after{
        content: '／';
    }

    /**************/



    /*****button*****/
    .button_valentina{
        width: 90%;
        margin: 1.5em auto;
        text-align: center;
    }
    .button_valentina button{
        width: 95%;
        margin: 0 auto;
        padding: 1.0em;
        border: 2px solid #99CFFF;
        background-color: #6495ED;
        border-radius: 10px;
        position: relative;
        transition: all .5s;
    }
    .button_valentina button:hover{
        top:-3px;
        box-shadow: 0 2px 3px rgba(0, 0, 0, 0.3);
    }
    .button_valentina button p{
        font-size: 1.0em;
        font-weight: 900;
        color: #fff;
    }

    /*****screen*****/
    .screen{
        width: 90%;
        margin: 3.0em auto 2.0em;
    }
    .title_screen{
        width: 95%;
        margin: 3.0em auto;
        text-align: center;
        position: relative;
    }
    .title_screen::after{
        position: absolute;
        content: '';
        width: 65vw;
        height: 1px;
        bottom: -3vh;
        right: 50%;
        transform: translate(50%, 50%);
        background-color: #99CFFF;
    }
    .title_screen span{
        font-family: 'Playfair Display', serif;
        font-size: 1.3em;
        font-weight: 900;
        letter-spacing: 0.1em;
        line-height: 1.5em;
        color: #6495ED;
    }
    .contents_screen{
        width: 100%;
        margin: 2.5em 0;
    }
    .caption_screen{
        width: 90%;
        margin: 0 auto;
        text-align: left;
    }
    .caption_screen p{
        font-size: 0.9em;
        line-height: 1.5em;
    }
    .flex_screen{
        width: 100%;
        margin: 2.0em auto;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
    }
    .photo_screen{
        width: 85%;
        padding: 1.0em;
        text-align: center;
    }
    .image_screen{
        width: 90%;
        box-shadow: 0 0 5px #333;
    }
    .profile_screen{
        width: 90%;
    }
    .title_profile_screen{
        width: 90%;
        margin: 0.5em auto;
        text-align: center;
    }
    .title_profile_screen span{
        font-family: 'Playfair Display', serif;
        font-size: 1.4em;
        font-weight: 900;
        letter-spacing: 0.1em;
        color: #f00;
    }
    .contents_profile_screen{
        width: 95%;
        margin: 1.5em auto;
    }
    .item_profile_screen{
        margin: 0.5em auto;
        font-family: 'Playfair Display', serif;
        font-size: 0.7em;
        text-align: center;
        font-weight: 600;
        line-height: 1.5em;
        color: #f00;
    }
    .caption_profile_screen{
        width: 100%;
        margin: 1.5em auto;
    }
    .caption_profile_screen p{
        font-size: 0.9em;
        line-height: 1.5em;
    }
    /*****comment*****/
    .comment{
        width: 100%;
        margin: 4.0em auto;
        padding: 1.5em 2.0em 2.0em;
        text-align: center;
        background-color: #99CFFF;
        position: relative;
    }
    .comment::before{
        position: absolute;
        content: '';
        border-bottom: 50px solid #99CFFF;
        border-left: 100vw solid transparent;
        left: 0;
        top: -50px;
    }
    .comment p{
        font-size: 1.1em;
        font-weight: 900;
        line-height: 1.5em;
        color: #fff;
    }




    /*****info*****/
    .info{
        width: 90%;
        margin: 3.0em auto 7.0em;
    }
    .title_info{
        width: 80%;
        margin: 3.0em auto;
        text-align: center;
        position: relative;
    }
    .title_info::after{
        position: absolute;
        content: '';
        width: 30vh;
        height: 1px;
        bottom: -4vh;
        right: 50%;
        transform: translate(50%, 50%);
        background-color: #99CFFF;
    }
    .title_info span{
        font-family: 'Playfair Display', serif;
        font-size: 1.3em;
        font-weight: 900;
        letter-spacing: 0.1em;
        color: #6495ED;
    }
    .contents_info{
        width: 95%;
        margin: 2.0em auto;
    }
    .swiper_info{
        width: 100%;
        height: 113vw;
        margin: 0 auto;
        padding: 0 2.0em;
        position: relative;
        overflow: hidden;
    }
    .swiper-slide{
        height: auto;
        display: flex;
    }
    .item_swiper_info{
        width: 100%;
        height: auto;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translateY(-50%) translateX(-50%);
    }
    .photo_swiper_info{
        width: 95%;
        margin: 0 auto;
        text-align: center;
    }
    .image_swiper_info{
        width: 100%;
        box-shadow: 0 0 10px #333;
    }
    .prev1{
        position: absolute;
        left: 2vh;
        top: 50%;
        transform: translate(-50%, -50%);
        --swiper-navigation-color: #333;
    }
    .next1{
        position: absolute;
        right: -3vh;
        top: 50%;
        transform: translate(-50%, -50%);
        --swiper-navigation-color: #333;
    }
    .next1::after,
    .prev1::after{
        font-size: 1.5em;
    }
    .contents_info .swiper-pagination-bullets{
        bottom: 0;
    }
    .title_swiper_info{
        width: 95%;
        margin: 2.0em auto;
        text-align: center;
    }
    .title_swiper_info span{
        font-size: 1.2em;
        font-weight: 900;
        letter-spacing: 0.1em;
    }

    /*fade*/
    .fade-in{
        opacity: 0;
        transition-duration: 500ms;
        transition-property: opacity, transform;
    }
    .fade-in-up {
        transform: translate(0, 50px);
    }
    .fade-in-down {
        transform: translate(0, -50px);
    }
    .fade-in-left{
        transform: translate(-50px, 0);
    }
    .fade-in-right {
        transform: translate(50px, 0);
    }
    .scroll-in {
        opacity: 1;
        transform: translate(0, 0);
    }

    /*smooth scroll*/
    .topbtn{
        right: 40px;
        background: #333;
        opacity: 0.6;
        border-radius: 50%;
        display: block;
        width: 50px;
        height: 50px;
        text-decoration: none;
    }
    .topbtn::before{
        font-family: 'Font Awesome 5 Free';
        font-weight: 900;
        content: '\f102';
        font-size: 25px;
        color: #fff;
        position: absolute;
        width: 25px;
        height: 25px;
        top: -5px;
        bottom: 0;
        right: 0;
        left: 0;
        margin: auto;
        text-align: center;
    }

    /*footer*/
    .site-footer{
        position: relative;
        margin-top: 2.4em;
        color: #fff;
    }
    .site-footer a{
        text-decoration: none;
        color: #fff;
    }
    .site-footer a:hover{
        text-decoration: underline;
    }
    .site-footer .top-section{
        padding: 1.2em;
        background: #333;
    }
    .site-footer .top-section .flex{
        display: block;
    }
    .site-footer .top-section .flex .left{
        width: 100%;
    }
    .site-footer .top-section .flex .left p{
        line-height: 1.8em;
    }
    .site-footer .footer-logo{
        font-size: 1.7em;
    }
    .address{
        font-size: 0.8em;
    }
    .site-footer .sns{
        margin: 0.5em 0 0;
        padding: 0;
    }
    .site-footer .sns li{
        display: inline-block;
        margin: 0 1em 0 0;
        padding: 0;
        font-size: 1.5em;
    }
    .site-footer .sns li:last-child{
        margin-right: 0;
    }
    .site-footer .top-section .flex .right{
        width: 100%;
    }
    .navi-section{
        display: block;
        width: 100%;
        margin: 40px 0 0;
    }
    .title-section{
        width: 40vw;
        min-width: 30px;
        padding: 0.5rem 1rem;
        border-top: 2px solid white;
        border-bottom: 2px solid white;
        text-align: center;
        margin: 1em 0;
    }
    .site-footer .navi-list{
        list-style: none;
        padding-bottom: 10px;
        border-bottom: 1px solid #444;
    }
    .site-footer .navi-list li{
        border-top: 1px solid #444;
        padding-top: 10px;
        margin-top: 10px;
        font-size: 0.8em;
    }
    .site-footer .navi-list li:first-child{
        margin: 0;
    }
    .site-footer .navi-list a:hover,
    .site-footer .title-list a:hover{
        text-decoration: none;
    }
    .site-footer .title-list{
        margin: 0 0 0.9em 0;
        padding: 0;
        font-weight: bold;
        line-height: 2em;
    }
    .site-footer .bottom-section{
        display: block;
        padding: 2.2em;
        background: #222;
    }
    .site-footer .copyright{
        width: 100%;
        text-align: center;
        font-size: 0.9em;
    }
}