@charset "utf-8";

    @media(max-width:479px){

        /*header*/
        header {
            width: 100%;
            height: 8vh;
        }

        #header {
            width: 100%;
            height: 8vh;
            display: flex;
            justify-content: center;
            background-color: white;
            border-bottom: 2px solid gray;
        }
        #headerbox {
            width: 90%;
            height: 8vh;
            display: flex;
            justify-content: space-between;
        }
        #headerbox a {
            font-weight: bold;
            color: white;
        }
        #headerbox p {
            color: white;
        }
        .logo {
            width: 11%;
            height: 11vh;
        }
        .logo img {
            width: 90px;
            height: 30px;
            transform: translateY(2.5vh);
        }
        .m_menu {
            position: absolute;
            left: 0;
            top: -100vh;
            width: 100vw;
            height: 100vh;
            background-color: #0f238c;
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 2;
            transition: 1s;
        }
        .m_menu ul {
            display: flex;
            flex-direction: column;
            margin-top: 1vh;
        }
        .m_menu a {
            font-size: 2rem;
            font-weight: bold;
            color: white;
            line-height: 4rem;
            letter-spacing: 5px;
            position: relative;
        }
        .m_menu a::after {
            content: "";
            height: 3px;
            width: 0;
            background: white;
            position: absolute;
            bottom: 0;
            left: 0;
            transition: width 0.5s;
        }
        .m_menu a:hover::after {
            width: 100%;
        }
        .m_menu> ul {
            display: flex;
            justify-content: space-around;
        }
        .s_menu {
            width: 17%;
            height: 11vh;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-content: center;
            transform: translateY(-2.5vh);
            line-height: 1rem;
            display: none;
        }
        .s_menu a {
            font-size: 0.6rem;
            font-weight: bold;
            color: white;
            padding-left: 20px;
        }
        .s_menu p {
            display: none;
        }
        .s_menu button {
            border: none;
        }
        .s_menu button:hover {
            opacity: 0.5;
        }
        .s_menu i {
            font-size: 12px;
            color: white;
            background-color: #0f238c;
        }
        .s_menu input {
            width: 70px;
            height: 10px;
        }
        #open {
            font-size: 2rem;
            color: #0f238c;
            position: absolute;
            top: 2vh;
            right: 3vw;
            cursor: pointer;
            z-index: 1;
        }
        #close {
            font-size: 2rem;
            color: white;
            z-index: 2;
            position: absolute;
            top: 1vh;
            right: 3vw;
            cursor: pointer;
            display: none;
        }

        /*Section*/
        section {
            width: 100%;
            height: auto;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        #section {
            width: 95%;
            height: auto;
            display: flex;
            flex-direction: column;
            justify-content: space-around;
            align-items: flex-start;
            margin-top: 20vh;
        }

        #section_box {
            width: 100%;
            height: auto;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .section_intro {
            width: 100%;
            height: 110vh;
            display: flex;
            flex-direction: column;
            margin-bottom: 5vh;
        }
        .section_intro h2 {
            font-size: 2.5rem;
            border-bottom: 4px solid #0f238c;
            padding-bottom: 3vh;
        }
        .section_img {
            width: 100%;
            height: 40vh;
            background: url(../img/2050ti.JPG);
            background-repeat: no-repeat;
            background-size: cover;
            background-position-y: 70%;
            margin-top: 4vh;
        }
        .section_intro h3 {
            font-size: 1.2rem;
            color: #0f238c;
            margin-top: 4vh;
        }
        .section_intro p {
            font-size: 1rem;
            margin-top: 2vh;
            line-height: 2rem;
        }

        .section_info {
            width: 100%;
            height: auto;
            border-top: 4px solid #0f238c;
            border-left: 1px solid black;
            border-bottom: 1px solid black;
            border-right: 1px solid black;
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-bottom: 10vh;
        }
        .info_short {
            width: 90%;
            height: 30vh;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            align-items: center;
            text-align: center;
            margin-top: 5vh;
        }
        .info_short h2 {
            font-size: 2.5rem;
        }
        .info_short img {
            width: 60%;
            height: 30vh;
        }
        .info_overflow {
            width: 90%;
            height: auto;
        }
        .info_detail {
            width: 100%;
            height: 35vh;
            overflow: hidden;
            position: relative;
        }
        .info_detail h3 {
            font-size: 1.2rem;
            color: #0f238c;
            margin: 2vh 0 1vh 0;
        }
        .info_detail p {
            font-size: 1rem;
            line-height: 2rem;
        }
        .after1 {
            font-size: 1.3rem;
            color: #0f238c;
            margin: 2vh 0 1vh 0;
        }
        .after2 {
            font-size: 1.1rem;
            color: #020202;
            line-height: 2rem;
        }
        .info_detail::before {
            background: linear-gradient(to top, rgba(255,255,255,1) 0%, rgba(255,255,255,0) 100%);
            content: "";
            height: 35vh;
            position: absolute;
            width: 100%;
            z-index: 2;
            left: 0;
            bottom: 0;
        }
        .shadow {
            background: unset !important;
            height: auto !important;
        }
        .shadow::before {
            height: 0 !important;
        }
        .info_button button {
            width: 100%;
            color: #0f238c;
            font-size: 1.5rem;
            background-color: transparent;
            border: none;
            cursor: pointer;
            display: flex;
            justify-content: center;
            margin: 2vh 0;
        }
        .info_button button:hover {
            text-decoration: underline;
        }
        .info_button button i {
            margin-right: 10px;
        }
        .info_button button i:hover {
            text-decoration: none;
        }
        #reduce {
            display: none;
        }

        .section_abstract {
            width: 100%;
            height: 120vh;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            align-items: center;
        }
        .section_abstract> .box {
            width: 100%;
            height: 30vh;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .box> .icon> img {
            width: 100%;
        }
        .box> .box_count {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .box_count> .counter {
            font-size: 3.5rem;
            font-family: "Gothic";
            font-weight: bold;
            color: #292929;
        }
        .box_count> p {
            font-size: 3.5rem;
            font-family: "Gothic";
            font-weight: bold;
            color: #292929;
        }
        .box> .text {
            text-align: center;
            font-size: 1.5rem;
            font-weight: bold;
            color: #0f238c;
        }

        .info_button2 {
            width: 100%;
            height: 10vh;
            display: flex;
            justify-content: center;
            align-items: center;
            border-bottom: 1px solid gray;
            margin: 15vh 0;
        }
        .info_button2 button {
            width: 130px;
            height: 40px;
            border: 1px solid gray;
            border-radius: 50px;
            background-color: transparent;
            font-size: 1.1rem;
            color: #292929;
            cursor: pointer;
            margin-bottom: 5vh;
        }
        .info_button2 button:hover {
            text-decoration: underline;
        }
        .info_button2 button i {
            font-size: 1rem;
            position: relative;
            left: -20%;
        }

        .section_product {
            width: 100%;
            height: 130vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        .section_product h2 {
            font-size: 2rem;
            color: #0f238c;
            margin-bottom: 10vh;
        }
        .product_slide {
            width: 100%;
            height: 120vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .product {
            width: 100%;
            height: 130vh;
            display: flex;
            flex-direction: column;
            justify-content: space-around;
            align-items: center;
            display: block;
        }
        .slide {
            width: 100%;
            height: 30vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        .slide img {
            width: 80%;
            height: 20vh;
            margin-bottom: 20px;
        }
        .slide a {
            font-size: 1rem;
            font-weight: bold;
            color: #292929;
        }
        .slide a:hover {
            text-decoration: underline;
        }
        .product {
            position: relative;
        }
        .product button {
            display: none;
            position: absolute;
            z-index: 1;
            top: 50%;
            transform: translateY(-50%);
        }
        .product button::before {
            font-family: "fas";
            color: #0f238c;
            font-weight: bold;
            font-size: 2rem;
        }
        .product button.slick-prev {
            left: -7%;
            font-size: 0;
            background-color: transparent;
            border: none;
        }
        .product button.slick-prev::before {
            content: "<";
        }
        .product button.slick-next {
            right: -7%;
            font-size: 0;
            background-color: transparent;
            border: none;
        }
        .product button.slick-next::before {
            content: ">";
        }

        #section_menu {
            width: 100%;
            height: 65vh;
            background-color: lightgray;
            border-top: 4px solid #0f238c;
            border-left: 1px solid darkgray;
            border-bottom: 1px solid darkgray;
            border-right: 1px solid darkgray;
        }
        #section_menu> ul {
            width: 100%;
            height: 61vh;
        }
        #section_menu> ul> li {
            line-height: 4rem;
        }
        #section_menu> ul li a {
            font-size: 1.5rem;
            color: #020202;
            margin-left: 10px;
        }
        #section_menu> ul li a:hover {
            text-decoration: underline;
        }
        #section_menu> ul li i {
            font-size: 1rem;
            color: #0f238c;
        }
        #section_menu> ul> li> i {
            position: absolute;
            right: 20px;
            margin-top: 25px;
        }
        #section_menu> ul> li> ul> li {
            line-height: 4rem;
            background: #0f238c;
        }
        #section_menu> ul> li> ul> li> a {
            font-size: 1rem;
            color: white;
        }
        #section_menu> ul> li> ul> li> i {
            font-size: 1rem;
            color: white;
            position: absolute;
            right: 15px;
            margin-top: 25px;
        }
        #section_menu> ul li ul li ul li {
            border-bottom: 1px solid darkgray;
            line-height: 3rem;
            background-color: lightgray;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        #section_menu> ul li ul li ul li:last-child {
            border: none;
        }
        #section_menu> ul> li> ul> li> ul> li> a {
            font-size: 1rem;
            color: #020202;
        }
        #section_menu> ul> li> ul> li> ul> li> i {
            margin-right: 10px;
        }

        #sns {
            width: 100%;
            height: 10vh;
            display: flex;
            justify-content: center;
            align-items: center;
            border-bottom: 4px solid #0f238c;
        }
        #sns p {
            font-size: 1rem;
        }
        #sns i {
            font-size: 1.5rem;
            color: gray;
            cursor: pointer;
        }
        
        /*Footer*/
        footer {
            width: 100%;
            height: 66vh;
        }

        /*Footer1*/
        #footer1 {
            width: 100%;
            height: 54vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        #footer1_box {
            width: 100%;
            height: 53vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .footer1_menu {
            width: 100%;
            height: 53vh;
        }
        .footer1_menu nav {
            width: 100%;
            height: 53vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-content: space-between;
            line-height: 3rem;
            background-color: lightgray; 
        }
        .footer1_menu nav> ul> li {
            border-bottom: 1px solid darkgray;
        }
        .footer1_menu nav> ul> li> a {
            color: #696969;
            font-size: 1rem;
            font-weight: bold;
            margin-left: 20px;
        }
        .footer1_menu nav> ul> li> a:hover {
            text-decoration: underline;
        }
        .footer1_menu nav> ul> li> ul> li {
            width: 80%;
            line-height: 1.5rem;
            display: flex;
            flex-direction: column;
            display: none;
        }
        .footer1_menu nav> ul> li> ul> li> a {
            color: #020202;
            font-size: 0.8rem;
        }
        .footer1_menu nav> ul> li> ul> li> a:hover {
            text-decoration: underline;
        }

        /*Footer2*/
        #footer2 {
            width: 100%;
            height: 5vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        #footer2_box {
            width: 100%;
            height: 5vh;
            background-color: lightgray;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .footer2_menu {
            width: 90%;
            height: 5vh;
            display: flex;
            justify-content: flex-start;
            align-items: center;
        }
        .footer2_menu ul {
            display: flex;
            justify-content: space-around;
        }
        .footer2_menu ul li a {
            color: #020202;
            font-size: 0.8rem;
            border-right: 1px solid darkgray;
            padding: 0 5px;
        }
        .footer2_menu ul li a:hover {
            text-decoration: underline;
        }
        .footer2_menu ul li:nth-of-type(3) a {
            border: none;
        }
        .footer2_move {
            width: 30px;
            height: 30px;
            background-color: #0f238c;
            cursor: pointer;
        }
        .footer2_move:hover {
            opacity: 0.8;
        }
        .footer2_move i {
            color: white;
            font-size: 1rem;
            transform: translate(50%,25%);
        }

        /*Footer3*/
        #footer3 {
            width: 100%;
            height: 10vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        #footer3_box {
            width: 90%;
            height: 10vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        #footer3_box img {
            width: 150px;
            height: 30px;
            margin-bottom: 2vh;
        }
        #footer3_box p {
            font-size: 1rem;
        }

    }