@charset "UTF-8";

/*************************************************
* 共通スタイル
*************************************************/
body {
    overflow-x: hidden;
}

/* 余白 */
/*----------------------------------------------*/
#line_area,
#footer {
    margin-top: 4em;
}

#access_map_area,
#tech {
    margin-top: 2em;
}

#access {
    margin-bottom: 1em;
}

#map,
#link,
#tech {
    margin-bottom: 4em;
}

#contents_area,
#contact,
#pparea {
    padding: 4em 0;
}

#strengths {
    padding-top: 3em;
    padding-bottom: 4em;
}

#works #strengths{
    padding: 2em 0;
}

/* SHサイズ対応 */
@media (max-width: 768px) {
    #map {
        margin-bottom: 1.5em;
    }

    #footer {
        margin-top: 2em;
    }

    #strengths {
        padding: 3em 0;
    }

    #works #strengths {
        padding-top: 2em;
        padding-bottom: 0;
    }

    #tech {
        margin-top: 0;
        margin-bottom: 2em;
    }

    #contents_area,
    #contact,
    #pparea {
        padding: 3.5em 0;
    }
}

/* 装飾 */
/*----------------------------------------------*/
/* ホーム専用見出し */
h2 {
    color: #333;
    font-size: 1.5em;
    padding: 0.5rem 0;
    text-align: left;
    margin: 10px 0 !important;
    position: relative;
}

h2:before {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    content: '';
    background: #ccc;
}

h2 span {
    font-size: 70%;
    color: #2F5A8D;
    display: inline-block;
    margin-left: 10px;
    font-weight: normal;
}

/* ページタイトル装飾 */
/*----------------------------------------------*/
#title {
    position: relative;
    padding: 85px 0 25px;
    background-image: url(img/title.png);
    background-size: cover;
    background-position: center top;
    text-shadow: 1px 1px 1px #333;
    text-align: center;
    color: #fff;
    overflow: hidden;
}

#title::before {
    content: "";
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: 0;
}

#title>.section-title,
#title>h1 {
    position: relative;
    z-index: 2;
}

.background-text {
    position: absolute;
    font-size: 120px;
    font-weight: bold;
    color: #fff;
    opacity: 0.1;
    pointer-events: none;
    user-select: none;
    z-index: 0;
}

.background-text.left {
    left: 25px;
    top: 40px;
}

.background-text.right {
    right: 20px;
    bottom: -50px;
}

#title>.section-title,
#title>h1 {
    position: relative;
    z-index: 2;
}

#title>.section-title {
    color: #fff;
    font-size: 200%;
    line-height: 1.6;
    font-family: -apple-system, "Aldrich", sans-serif, 'Lucida Grande', 'Helvetica Neue', 'Hiragino Kaku Gothic ProN', 'メイリオ', '游ゴシック', meiryo, sans-serif;
}

#title h1 {
    color: #fff;
    font-size: 110%;
}

/* PCサイズ対応 */
@media (min-width: 768px) {
    #title {
        background-position: center 30%;
        padding: 95px 0 40px;
    }

    #title>.section-title {
        font-size: 260%;
        margin-top: 30px;
    }

    #title h1 {
        font-size: 120%;
    }
}

/* SHサイズ対応 */
@media (max-width: 768px) {
    .background-text {
        font-size: 79px;
    }
}

/* パンくずリスト */
/*----------------------------------------------*/
#breadcrumbs {
    border-bottom: 1px solid #ccc;
    margin-bottom: 2em;
}

.breadcrumb {
    background-color: #fff;
    margin: 0;
    padding: 8px 0;
}

.breadcrumb>li a {
    color: #666;
    text-decoration: underline;
}

/* グローバルナビゲーション */
/*----------------------------------------------*/
.fixed_top {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1030;
    background-color: #fff;
    border-bottom: 1px solid #ccc;
}

.navbar-toggler {
    border: none;
}

.navbar-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.navbar-brand img {
    width: 80%;
}

.navbar-nav .nav-item {
    margin: 5px auto;
    padding: 0 20px;
    text-align: center;
}

.navbar-nav .active>a {
    color: #202090 !important;
}

.navbar-nav .nav-link {
    font-size: 150%;
    display: inline-block;
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
    font-family: -apple-system, "Aldrich", sans-serif, 'Lucida Grande', 'Helvetica Neue', 'Hiragino Kaku Gothic ProN', 'メイリオ', '游ゴシック', meiryo, sans-serif;
}

.navbar-nav .nav-link:hover {
    color: #202090 !important;
}

.navbar-nav .nav-link span {
    display: block;
    font-size: 60%;
    color: #333;
}

/* PCサイズ対応 */
@media (min-width:768px) {
    .navbar-expand-lg {
        padding-left: 0;
        padding-right: 0;
    }
}

/* SHサイズ対応 */
@media (max-width:768px) {
    .navbar-toggler>.fa {
        font-size: 130%;
        color: #333;
    }

    .navbar-brand img {
        width: 60%;
    }

    .navbar-nav {
        gap: 0px;
    }
}

/* トップ画像 */
/*----------------------------------------------*/
#main_image.hero-section {
    position: relative;
    padding-top: 78px;
}

#main_image .hero-image {
    width: 100%;
    height: auto;
    display: block;
}

#main_image .overlay-text {
    position: absolute;
    top: 30%;
    left: 0;
    width: 100%;
    color: #fff;
}

#main_image .overlay-text .container {
    margin: 0 auto;
    padding: 0 15px;
}

#main_image .overlay-text h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-family: -apple-system, "Aldrich", sans-serif, 'Lucida Grande', 'Helvetica Neue', 'Hiragino Kaku Gothic ProN', 'メイリオ', '游ゴシック', meiryo, sans-serif;
}

#main_image .overlay-text p {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    line-height: 1.4;
}

#main_image .overlay-text .btn {
    background-color: transparent;
    color: #fff;
    padding: 0.8rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    display: inline-block;
    transition: background-color 0.3s ease, color 0.3s ease;
    border: 2px solid #fff;
}

#main_image .overlay-text .btn:hover {
    background-color: rgba(255, 255, 255, 0.5);
}

/* SHサイズ対応 */
@media (max-width: 768px) {
    #main_image.hero-section {
        padding-top: 67px;
    }

    #main_image .overlay-text {
        top: 35%;
    }

    #main_image .overlay-text h3 {
        font-size: 1.8rem;
    }

    #main_image .overlay-text p {
        font-size: 1.1rem;
    }

    #main_image .overlay-text .btn {
        padding: 0.6rem 1.2rem;
        font-size: 1rem;
    }
}

/* コードの強み */
/*----------------------------------------------*/
.strengths-section {
    position: relative;
    overflow: hidden;
}

.strengths-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 430px;
    background-size: auto 75%;
    background-repeat: no-repeat;
    background-position: left top, right top;
    background-image: url("img/strengths_L.png"), url("img/strengths_R.png");
    z-index: 1;
}

.strengths-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 2;
    margin: 0 auto;
    padding: 0 20px;
    flex-wrap: wrap;
}

.strengths-image-area {
    flex: 0 0 35%;
}

.strengths-text-area {
    position: relative;
    flex: 1;
    color: #000;
    padding-bottom: 20px;
}

.strengths-text-area p {
    line-height: 1.6;
    margin-bottom: 20px;
}

.strengths-list {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.strengths-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    position: relative;
    padding: 8px 0 8px 60px;
    background: linear-gradient(to left, #003366 5%, #CFE0F2 20%);
    border-radius: 5px;
}

/* 番号ブロック */
.strengths-list .number {
    position: absolute;
    left: 0;
    top: 0;
    background-color: #003366;
    color: #fff;
    border-radius: 5px;
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 20px;
}

.strengths-list .number::after {
    content: "▶";
    margin-left: 8px;
    color: #003366;
    font-size: 16px;
    position: absolute;
    right: -10px;
    top: 50%;
    transform: translateY(-50%);
}

.strengths-text-area a {
    position: absolute;
    right: 0;
    bottom: 0;
    color: #333;
    z-index: 0;
}

/* SHサイズ対応 */
@media screen and (max-width: 768px) {
    .strengths-content {
        flex-direction: column;
        text-align: center;
    }

    .strengths-image-area {
        display: none;
    }

    #works .strengths-text-area {
        flex: 0 0 100%;
        padding-bottom: 0;
    }

    .strengths-text-area .btn {
        position: static;
        margin-top: 20px;
        display: inline-block;
    }

    .strengths-bg {
        background-size: 120px auto, 120px auto;
        height: 200px;
    }

    .strengths-list li {
        font-size: 13px;
        background: #CFE0F2;
        padding-left: 52px;
    }

    .strengths-list .number {
        width: 37px;
        height: 100%;
    }

}

/* コンテンツ */
/*----------------------------------------------*/
#contents_area .image-container {
    display: flex;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
}

#contents_area .image-wrap {
    width: calc(50% - 10px);
    margin-right: 20px;
    position: relative;
}

#contents_area .image-wrap:nth-child(2n) {
    margin-right: 0;
}

#contents_area .image-inner {
    position: relative;
    overflow: hidden;
    border-radius: 5px 5px 0 0;
}

#contents_area .image-inner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 1;
}

#contents_area .text-wrap {
    -webkit-clip-path: inset(0 0 0 0) !important;
    clip-path: inset(0 0 0 0) !important;
}

#contents_area .image-wrap:hover .image-inner::before {
    opacity: 1;
}

#contents_area img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    position: relative;
    z-index: 0;
}

#contents_area .text-wrap {
    position: absolute;
    top: 20px;
    left: 0;
    width: 335px;
    min-height: 92px;
    padding-left: 25px;
    background: #2F5A8D;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    -webkit-clip-path: inset(0 100% 0 0);
    clip-path: inset(0 100% 0 0);
    transition: 0.7s cubic-bezier(0.16, 0.09, 0, 1.02) 0s;
}

#contents_area .imgcard_title {
    color: #fff;
    margin-top: 10px;
    font-family: -apple-system, "Aldrich", sans-serif, 'Lucida Grande', 'Helvetica Neue', 'Hiragino Kaku Gothic ProN', 'メイリオ', '游ゴシック', meiryo, sans-serif;
}

#contents_area .imgcard_subtitle {
    color: #fff;
    margin-top: 10px;
    margin-bottom: -7px;
    font-size: 85%;
}

#contents_area .additional-info {
    padding: 10px 28px 20px;
    box-sizing: border-box;
    width: 100%;
    color: #333;
    font-size: 14px;
    background-color: #fff;
    border-radius: 0 0 5px 5px;
    z-index: 1000;
}

#contents_area .additional-info p {
    margin: 10px 0;
    color: #333;
    font-size: 14px;
}

#contents_area .btn-detail {
    width: 100% !important;
    display: block;
    color: #333;
    border-radius: 5px;
    text-decoration: none;
    padding: 10px;
    border: 2px solid #2F5A8D;
    transition: background-color 0.3s ease;
    margin: 20px auto 0 auto;
    text-align: center;
}

#contents_area .btn-detail:hover {
    background-color: #2F5A8D;
    color: #fff;
}

/* SHサイズ対応 */
@media (max-width: 768px) {

    #contents_area .image-wrap:first-of-type {
        margin: 0 0 15px 0;
    }

    #contents_area .image-wrap {
        width: 100%;
    }

    #contents_area .container {
        padding: 0;
    }

    #contents_area {
        padding-right: 15px;
        padding-left: 15px;
    }
}

/* 地図,アクセス情報 */
/*----------------------------------------------*/
/* 地図セクション */
#map h2,
#access h2 {
    font-size: 1.8em;
    margin-bottom: 1em;
}

iframe {
    width: 100%;
    height: 270px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#aboutus iframe {
    margin-top: 2em;
}

/* directionsは個別ページと共通 */
/* 交通案内 */
.directions {
    margin-top: 0.5em;
}

.directions-title {
    margin-bottom: 0.5em;
    font-weight: bold;
}

.directions-columns {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.directions-column {
    flex: 1 1 calc(33.333% - 11px);
}

/* SHサイズ対応 */
@media (max-width: 768px) {

    .directions-column {
        flex: 1 1 100%;
    }

    .directions-columns {
        gap: 5px;
    }

}

/* PCサイズ対応 */
@media (min-width: 768px) {
    #aboutus iframe {
        height: 410px;
    }
}

/* アクセス情報 */
#access {
    text-align: center;
}

#access h3 {
    font-size: 130%;
    margin-top: 1em;
    margin-bottom: 0.5em;
}

#access address {
    display: block;
    margin: 1em 0;
    font-style: normal;
    line-height: 1.6;
}

#access address>a {
    display: block;
    margin: 3px auto;
    color: #333;
    font-size: 155%;
    text-decoration-line: none;
}

#access address>a>img {
    margin-right: 5px;
    height: 30px;
}

address span:nth-of-type(2) {
    color: #2F5A8D;
    font-weight: bold;
}

/* グループ会社リンク */
.link-wrap {
    display: flex;
    gap: 0;
    padding: 0;
    margin: 0;
}

.link-wrap a {
    flex: 1;
}

.link-wrap a:first-child {
    margin-right: 5px;
}

.link-wrap img {
    width: 100%;
    height: auto;
    display: block;
}

/* お問い合わせフォーム */
/*----------------------------------------------*/
.asterisk {
    color: #666;
    font-size: 90%;
    margin-top: 5px;
    margin-left: 0.7em;
    margin-bottom: 15px;
}

.asterisk li:not(:last-child) {
    margin-bottom: 4px;
}

.asterisk li:before {
    margin-left: -1em;
    content: '\00203b';
}

.contact-form label {
    font-weight: 400;
}

.contact-form input,
.contact-form textarea {
    padding: 10px 12px;
    border-radius: 0;
    box-shadow: none;
    font-size: 14px;
    height: auto;
}

.contact-form .form-send button {
    padding: 8px 170px;
    display: block;
    color: #333;
    border-radius: 5px;
    text-decoration: none;
    border: 2px solid #2F5A8D;
    transition: background-color 0.3s ease;
    width: fit-content;
    margin: 20px auto 0 auto;
    text-align: center;
    background: transparent;
    cursor: pointer;
}

.contact-form .form-send button:hover {
    background-color: #2F5A8D;
    color: #fff;
}

.contact-form .validate {
    display: none;
    color: red;
    margin: 0 0 15px 0;
    font-weight: 400;
    font-size: 13px;
}

.contact-form .loading {
    display: none;
    color: #555;
    background: #fff;
    text-align: center;
    padding: 15px;
    margin: 15px 0;
}

.contact-form .error-message {
    display: none;
    color: #fff;
    background: #ed3c0d;
    text-align: center;
    padding: 15px;
    font-weight: 600;
    margin: 15px 0;
}

.contact-form .sent-message {
    display: none;
    color: #fff;
    background: #18d26e;
    text-align: center;
    padding: 15px;
    font-weight: 600;
    margin: 15px 0;
}

/* 必須マーク */
.required {
    color: red;
    margin-left: 3px;
}

.required-note {
    color: #333;
    display: block;
    margin-bottom: 10px;
}

/* チェックボックス */
.checkbox-group {
    margin: 20px 0;
}

.checkbox-label {
    font-weight: 400;
    display: block;
    margin-bottom: 5px;
}

.privacy-text {
    font-size: 90%;
    color: #555;
    margin-bottom: 8px;
}

.privacy-text a {
    color: inherit;
    text-decoration: underline;
    font-weight: normal;
}

/* スマホ対応 */
@media (max-width: 768px) {
    .contact-form .form-send button {
        width: 100%;
        padding: 10px;
        box-sizing: border-box;
    }
}

/* 背景設定 */
/*----------------------------------------------*/
#contents_area {
    background: url('img/back.png') no-repeat center center;
    background-size: cover;
}

#contact {
    background:
        linear-gradient(to bottom, rgba(255, 255, 255, 0) 80%, #fff 100%),
        url('img/back.png') no-repeat center top;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: scroll;
    background-position: center top;
}

#pparea {
    background: url('img/back_Y.png') no-repeat center center;
    background-size: cover;
}

.contact-inner-bg {
    background: #fff;
    padding: 10px 30px 30px 30px;
    border-radius: 5px;
}

/* 固定ページ専用見出し装飾 */
/*----------------------------------------------*/
h2.sec_title {
    position: relative;
    font-size: 120%;
    padding: 3px 0 3px 25px;
    text-align: left;
    border-bottom: 1px solid #ccc;
}

h2.sec_title::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 6px;
    height: 100%;
    margin: 0 10px;
    background: #202090;
    transform: skewY(-15deg) rotate(18deg);
    transform-origin: top right;
}

/* 会社概要ページ */
/*----------------------------------------------*/
.ceo_message {
    margin: 2em 0;
}

.ceo_message>p {
    margin-bottom: 1em;
}

.ceo_message>p:last-of-type {
    text-align: right;
    margin-bottom: 0;
}

.list_campany {
    width: 100%;
    margin-top: 1em;
}

.list_campany dt {
    display: block;
    float: left;
    clear: left;
}

.list_campany dt,
.list_campany dd {
    padding: 10px 0;
}

.list_campany dd {
    padding-left: 125px;
    text-align: left;
}


/* 導入実績 */
/*----------------------------------------------*/
/* 保有技術 */
.scroll-box {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    border-collapse: collapse;
    width: 100%;
}

#tech {
    border-collapse: separate;
    border-spacing: 0;
}

#tech th,
#tech td {
    padding: 8px;
    vertical-align: top;
    white-space: nowrap;
}

#tech th {
    border: 1px solid #ccc;
    text-align: center;
    background-color: #003366;
    color: #fff;
}

#tech td {
    border: 1px solid #ccc;
    text-align: left;
    background: #f2f2f2;
    box-shadow: 0 4px 4px rgba(0, 51, 102, 0.1);
}

/* 導入実績 */
#works .group_works {
    font-size: 1.2em;
    margin-top: 1em;
    margin-bottom: 10px;
    position: relative;
}

#works .group_works:first-of-type {
    margin-top: 1em;
}

#works span.badge {
    padding: 0.5em;
    vertical-align: middle;
    color: #fff;
    background-color: #003366;
}

/* リスト全体 */
.list_works {
    margin-top: 1em;
    margin-bottom: 1.5em;
}

.list_works dl:last-of-type {
    margin-bottom: 0;
}


/* タイトル（dt） */
.list_works dt {
    display: block;
    margin-top: 12px;
}

.list_works dt:first-of-type {
    margin-top: 0;
}

.list_works dt:last-of-type {
    color: #d32f2f;
}

/* 内容（dd） */
.list_works dd {
    display: block;
    margin: 5px 0 0 0;
    color: #333;
    line-height: 1.5;
    font-size: 1em;
    border-radius: 5px;
    padding: 12px 15px;
    background: #e7eff7;
    border-left: 4px solid #003366;
    box-shadow: 0 4px 4px rgba(0, 51, 102, 0.1);
}

.list_works dd:last-of-type {
    background: #fff3f3;
    border-left-color: #d32f2f;
    color: #333;
    box-shadow: 0 4px 8px rgba(0, 51, 102, 0.1);
}

/* プライバシーポリシーページ */
/*----------------------------------------------*/
.privacy_policy p {
    font-size: 90%;
}

.privacy_policy p:nth-last-child(2) {
    margin-bottom: 10px;
}

.pptext {
    margin-left: 1.4em;
}

.pptext li {
    list-style-type: decimal;
    margin-bottom: 10px;
}

.pptext p {
    margin-bottom: 15px;
}

.pptext .r_asterisk {
    margin-left: 1em;
    color: #666;
}

.pptext .r_asterisk::before {
    margin-left: -1em;
    content: '\00203b';
}

.subtext {
    margin-left: 0;
    font-size: 90%;
}

.subtext li {
    list-style-type: none;
    counter-increment: cnt;
    margin-bottom: 0;
}

.subtext li::before {
    content: "(" counter(cnt) ")";
}

.subtext div {
    margin-left: 1.4em;
    font-size: 100%;
}

.subtext_disc {
    margin-left: 0;
    font-size: 105%;
}

.subtext_disc li {
    list-style-type: disc;
    margin-bottom: 0;
    counter-increment: none;
    margin-left: 2.5em;
}

.subtext_disc li::before {
    content: none;
}

.pptext li p>a {
    text-decoration-line: underline;
    color: #333;
}

/* フッター
-------------------------------------------------------- */
.footer_main {
    background: transparent;
}

.footer_main .navi {
    padding-bottom: 10px;
    border-bottom: 1px solid #ccc;
}

.footer_main .navi ul li {
    display: inline-block;
    width: 46%;
}

.footer_main .navi ul li a {
    display: inline-block;
    color: #000;
    line-height: 2;
    white-space: nowrap;
}

.footer_main .navi ul li a:hover,
.footer_main .navi ul li a:focus {
    color: #202090;
    text-decoration: none;
}

.footer_main .discription {
    margin-top: 10px;
}

.footer_main .discription div>address {
    display: inline-block;
}

.footer_main .discription p {
    font-size: 90%;
}

.footer_main .discription p:not(:last-child) {
    padding-right: 10px;
}

.footer_sub {
    background: #202090;
    padding: 5px 0;
    text-align: center;
}

#copyright {
    color: #fff;
}

/* PCサイズ対応 */
@media (min-width: 768px) {

    #copyright {
        font-size: 11px;
    }

    #copyright div {
        font-size: 11px;
    }

    .footer_main>.container {
        padding-right: 10%;
    }

    .footer_main .navi ul li {
        display: inline-block;
        width: auto;
    }

    .footer_main .navi ul li a {
        padding: 0 2em;
        font-size: 90%;
    }

    .footer_main .navi ul li a:first-child {
        padding-left: 0;
    }

    .footer_main .footer_sub .copyright {
        margin-top: 0;
        text-align: right;
    }

    .footer_sub {
        text-align: right;
    }

    .footer_sub>.container {
        padding-right: 15px;
        padding-left: 16px;
    }

    .footer_sub span {
        display: inline;
    }

}

/* SHサイズ対応 */
@media (max-width: 768px) {

    .footer_main .discription {
        margin: 10px 0 10px 0;
    }

    .footer_main .discription .row-0 {
        display: flex !important;
        align-items: center !important;
        gap: 10px !important;
    }

    .footer_main .discription .col-xs-12.col-sm-2,
    .footer_main .discription .col-xs-12.col-sm-10 {
        flex: 0 0 auto !important;
        width: auto !important;
        max-width: none !important;
    }

    .footer_main .discription .col-xs-12.col-sm-2 img {
        max-height: 50px !important;
        height: auto !important;
        width: auto !important;
        margin-right: 8px;
    }

    .footer_main .discription address {
        margin: 0 !important;
    }

}

/* ページトップ */
/*----------------------------------------------*/
#pagetop {
    position: fixed;
    right: 0;
    z-index: 1020;
    right: 2%;
    bottom: 1%;
}

#pagetop>a {
    background-image: url(img/pagetop.png);
}

#pagetop>a {
    display: inline-block;
    background-repeat: no-repeat;
    background-size: contain;
    overflow: hidden;
    text-indent: 100%;
    white-space: nowrap;
}

#pagetop>a:hover {
    opacity: 0.8;
}

#pagetop>a {
    width: 70px;
    height: 70px;
    border-radius: 50%;
}

/* PCサイズ対応 */
@media (min-width:768px) {
    #pagetop>a {
        width: 80px;
        height: 80px;
    }
}