@charset "UTF-8";

html {
    scroll-behavior: smooth;
}

.top {
    margin-top: 125px;
    width: 100%;
    height: auto;
    background-color: transparent;
    padding: 6% 14%;
    box-sizing: border-box;
    position: relative;
    z-index: 1;
}

.top::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: 100%;
    background-color: aliceblue;
    z-index: -1;
}

.top .big_title {
    width: 37.65%;
}

.top .big_title img {
    width: 100%;
    min-width: 80%;
}

.top .title_bar {
    width: 16%;
    height: 1px;
    background-color: #00a0ff;
    margin-top: 2%;
}

.top .small_title {
    color: #00a0ff;
    font-size: 20px;
    padding-top: 1%;
}

.branching_links {
    padding: 2% 14%;
    color: #00a0ff;
    font-size: 14px;
}

.branching_links .br_links a {
    color: #00a0ff;
    text-decoration: none;
}

.branching_links .br_links a:hover {
    color: #8aceff;
    transition: all ease 0.3s;
}

.main_contents {
    width: 73%;
    max-width: 934px;
    margin: 0 auto;
}

.main_contents .btns {
    display: flex;
    gap: 2%;
    justify-content: space-between;
}

.main_contents .btns a {
    display: block;
    text-decoration: none;
    flex: 1;
    width: 100%;
}

.main_contents .btns .btn {
    font-size:  22px;
    white-space: nowrap;
    color: #00a0ff;
    padding: 5% 1%;
    border: 1px solid #00a0ff;
    border-top: none;
    border-left: none;
    border-bottom-right-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-height: 50px;
    box-sizing: border-box;
    position: relative;
}

.main_contents .btns .btn .tr {
    width: 8px;
    height: 12px;
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    display: inline-block;
    margin: 0;
    background-color: transparent;
    flex-shrink: 0;
}

.main_contents .btns .btn .tr::before {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    border-bottom: 2px solid #00a0ff;
    border-right: 2px solid #00a0ff;
    transform: rotate(45deg);
    right: 0;
    top: 50%;
    margin-top: -4px;
}

.main_contents .title_all {
    margin: 9.4% 0 1.2%;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.main_contents .title_all .title {
    display: flex;
    align-items: center;
}

.main_contents .title_all img {
    width: clamp(20px, 4vw, 35px);
    height: auto;
    margin-right: 2vw;
    flex-shrink: 0;
}

.main_contents .tr {
    width: 100%;
    height: 0.1vw;
    background-color: #bce5ff;
    margin-bottom: 3.1%;
}

.main_contents .big_titles {
    font-size: clamp(20px, 4vw, 32px);
    color: #000;
}

.main_contents .tug {
    background-color: #00a0ff;
    color: #ffffff;
    font-size: clamp(16px, 3vw, 24px);
    padding: 0% 2%;
    margin: 0 5%;
    line-height: 200%;
    white-space: nowrap;
}

.main_contents .sentence {
    font-size: 16px;
    line-height: 1.7;
}

.main_contents .cont1,
.main_contents .cont2,
.main_contents .cont3 {
    width: 100%;
    scroll-margin-top: 170px;
}

.main_contents .cont1 .flex_cont1 {
    display: flex;
    margin: 7% auto 10%;
}

.main_contents .cont1 .flex_cont1 .cont1_left {
    margin: 0 2%;
    width: 80%;
    margin-left: 0%;
}

.main_contents .cont1 .flex_cont1 .cont1_left .sentence {
    margin-bottom: 3%;
}

.main_contents .cont1 .cont1_left .three_sentences {
    font-size: 20px;
    background-color: aliceblue;
    padding: 3% 5%;
    line-height: 2;
    border-radius: 21px;
    margin-top: 6%;
}

.main_contents .cont1 .three_sentences img {
    width: clamp(10px, 2vw, 15px);
    height: auto;
}

.main_contents .cont1 .flex_cont1 .cont1_right {
    margin: 0 2%;
    flex-basis: 40%;
    width: 100%;
}

.main_contents .cont1 .flex_cont1 .cont1_right img {
    width: 105%;
}

.main_contents .cont1 .flex_cont1 .cont1_right .underpicture {
    margin-top: 3%;
    font-size: 16px;
    color: #000;
}

/*---------------------------*/

.main_contents .cont2 .flex_secondcont {
    display: flex;
    justify-content: space-between;
    margin-top: 7%;
    margin-bottom: 10%;
}

.main_contents .cont2 .flex_secondcont .clark_img_box {
    width: 50%;
}

.main_contents .cont2 .flex_secondcont .clark_img_box .underpicture {
    font-size: 16px;
    margin: 3% 0;
    color: #000;
}

.main_contents .cont2 .flex_secondcont .clark_img_box .clarkhigh_img {
    width: 80%;
}

.main_contents .cont2 .flex_secondcont .clark_img_box .clarkhigh_img img {
    width: 100%;
}

.main_contents .cont2 .flex_secondcont .clark_info_box {
    width: 70%;
}

.main_contents .cont2 .flex_secondcont .second_sentence1 {
    font-size: 24px;
    font-weight: 500;
    color: #595757;
    margin-bottom: 5%;
}

.main_contents .cont2 .flex_secondcont .clark_row {
    display: flex;
    align-items: flex-end;
}

.main_contents .cont2 .flex_secondcont .second_sentence2 {
    font-size: 16px;
    margin-top: 0;
    line-height: 1.7;
}

.main_contents .cont2 .flex_secondcont .second_sentence2 p{
    font-size: 15px;
    margin-top: 5%;
    color: #000;
    font-weight: 380;
}

.main_contents .cont2 .flex_secondcont .clark_statue {
    width: 60%;
    margin-left: -5%;
    margin-bottom: 0;
}

/*-------------------------------*/


.middle_cont {
    margin: 3% 0;
    background-color: transparent;
    width: 100%;
    position: relative;
    height: auto;
    padding-bottom: 50px;
    box-sizing: border-box;
    z-index: 1;
}

.middle_cont::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: 100%;
    background-color: aliceblue;
    z-index: -1;
}

.middle_cont .middle_picture {
    padding: 40px 0 10px;
    text-align: center;
}

.middle_cont .middle_picture img {
    width: 100%;
    height: auto;
}

.middle_cont .picture_mb{
    display: none;
}

.middle_cont .middle_sentence {
    font-size: 18px;
    text-align: center;
    padding-bottom: 4%;
    color: #000;
    padding: 3% 5% 5%;
}

.middle_cont .flex_btn {
    display: flex;
    max-width: 934px;
    margin: 0 auto;
    justify-content: center;
    gap: 4%;
}

.middle_cont .common_btn {
    margin-top: 5px;
    margin-bottom: 0;
    margin-left: 0;
    margin-right: 0;
}

.middle_cont .middle_picture,
.middle_cont .middle_sentence,
.middle_cont .flex_btn {
    max-width: 934px;
    margin-left: auto;
    margin-right: auto;
}

.main_contents .cont3 {
    margin-bottom: 10%;
}

.main_contents .cont3 .title3 {
    white-space: nowrap;
}

.main_contents .cont3 .title3 .big_titles.small{
    font-size: clamp(22px, 2.6vw, 30px) ;
    color: #000;
}

.main_contents .cont3 .sentence{
    margin-top: 6%;
}

.main_contents .cont3 .picture_title {
    margin-top: 6%;
    font-size: clamp(18px, 2.7vw, 28px);
    color: #000;
    font-weight: 500;
}

.main_contents .cont3 .ball_picture {
    margin: 3% auto;
    text-align: center;
}

.main_contents .cont3 .ball_picture img {
    width: 100%;
    height: auto;
}

.main_contents .cont3 .flex_thirdcont {
    display: flex;
    margin-top: 10%;
    gap: 2%;
}

.main_contents .cont3 .flex_thirdcont .third_picture_left,
.main_contents .cont3 .flex_thirdcont .third_picture_right {
    width: 100%;
    display: flex;
    flex-direction: column;
}

.school_row {
    align-items: center;
    width: 100%;
    margin-bottom: 20px;
}


.school_img_box {
    width: 85%;
}

.school_img_box img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    vertical-align: bottom;
}

/* 文章ボックス */
.left_sentences,
.right_sentences {
    width: 100%;
    margin: 0;
}


.left_cont_title,
.right_cont_title {
    font-weight: bold;
    margin-bottom: 0.5em;
    font-size: 16px;
}


.main_contents .cont3 .common_btn.center_ver {
    width: 100%;
    margin-top: auto;
}

.main_contents .cont3 .flex_thirdcont .third_picture_left .left_sentences,
.main_contents .cont3 .flex_thirdcont .third_picture_right .right_sentences{
    margin: 7% 0 3%;
}

.main_contents .cont3 .flex_thirdcont .third_picture_left .left_sentences .left_cont_title,
.main_contents .cont3 .flex_thirdcont .third_picture_right .right_sentences .right_cont_title {
    font-size: 20px;
    color: #000;
    font-weight:500;
    margin-bottom: 4%;
}

.main_contents .cont3 .flex_thirdcont .third_picture_left .left_sentences .left_cont_sentence,
.main_contents .cont3 .flex_thirdcont .third_picture_right .right_sentences .right_cont_sentence {
    font-size: 16px;
    margin-right: 13%;
    color: #000;
    font-weight:400;
}

.main_contents .cont3 .bottom_btn1{
    margin-right: 19%;
}

.main_contents .cont3 .bottom_btn2{
    margin-right: 19%;
}

.main_contents .cont3 .bottom_btn1 .word{
    font-size: 18px;
}


.common_btn {
    font-size: 20px;
    background-color: #fff;
    width: 350px;
    max-width: 350px;
    aspect-ratio: 330 / 55;
    height: auto;
    text-align: center;
    border: 1px solid #00a0ff;
    border-radius: 999px;
    position: relative;
    transition: background-color 0.25s ease, border-color 0.25s ease;
    margin: 10% auto 0;
}

.common_btn a {
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 100%;
}

.common_btn .word {
    color: #00a0ff;
    transition: color 0.25s ease;
}

.common_btn .btn_pointer {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-42%);
    width: 3vw;
}

.common_btn .btn_pointer img {
    width: 80%;
    max-width: 25px;
    min-width: 20px;
    height: auto;
}

.common_btn:hover {
    background-color: #00a0ff;
}

.common_btn:hover .word {
    color: #fff;
}

.common_btn .btn_pointer img.hover {
    display: none;
}

.common_btn:hover .btn_pointer img.normal {
    display: none;
}

.common_btn:hover .btn_pointer img.hover {
    display: inline;
}

.main_contents .title_mb{
    display: none;
}



@media screen and (max-width: 960px) {

    body {
        overflow-x: hidden;
    }

    .top {
        padding: 12% 5%;
        margin-top: 85px;
    }

    .top .big_title {
        margin-bottom: 2%;
    }

    .top .title_bar {
        width: 16%;
        margin-top: 5px;
    }

    .top .small_title {
        font-size: 20px;
        padding-top: 5px;
    }

    .branching_links{
        font-size: 16px;
        padding: 3% 5%;
    }

    .main_contents {
        width: 90%;
    }

    .main_contents .big_titles{
        font-weight: 500;
    }

    .main_contents .cont1, .main_contents .cont2{
        scroll-margin-top: 100px;
    }

    .main_contents .cont3{
        scroll-margin-top: 120px;
    }

    .main_contents .sentence{
        font-size: 18px;
    }

    .main_contents .cont1 .cont1_left .three_sentences{
        font-size: 20px;
    }

    .main_contents .btns {
        gap: 5px;
    }

    .main_contents .btns .btn {
        font-size: 18px;
        padding: 10px 5px;
        border-bottom-right-radius: 20px;
    }

    .main_contents .cont1 .flex_cont1 {
        flex-direction: column;
    }

    .main_contents .cont1 .flex_cont1 .cont1_left {
        width: 100%;
        margin: 0;
    }

    .main_contents .cont1 .flex_cont1 .cont1_right {
        width: 100%;
        margin: 40px auto 0;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .main_contents .cont1 .flex_cont1 .cont1_right img {
        width: 70%;
        border-radius: 10px;
    }

    .main_contents .cont1 .flex_cont1 .cont1_right .underpicture {
        font-size: 22px;
        width: 70%;
        text-align: right;
        margin-top: 5px;
    }

    .main_contents .cont1 .three_sentences {
        border-radius: 10px;
        padding: 15px;
        line-height: 2.2;
    }

    .main_contents .cont2{
        max-width: 100%;
    }

    .main_contents .cont2 .flex_secondcont {
        flex-direction: column;
    }

    .main_contents .cont2 .flex_secondcont .clark_img_box {
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .main_contents .cont2 .flex_secondcont .clark_img_box .clarkhigh_img {
        width: 70%;
        margin-left: 0;
    }

    .main_contents .cont2 .flex_secondcont .clark_img_box .clarkhigh_img img {
        width: 100%;
        border-radius: 10px;
    }

    .main_contents .cont2 .flex_secondcont .clark_img_box .underpicture {
        font-size: 3vw;
        width: 70%;
        text-align: right;
        margin: 5px 0 0;
    }

    .main_contents .cont2 .flex_secondcont .clark_info_box {
        width: 70%;
        margin: 15px auto 0;
    }

    .main_contents .cont2 .flex_secondcont .second_sentence1 {
        font-size: 23px;
        margin-bottom: 20px;
        margin-top: 5%;
    }

    .main_contents .cont2 .flex_secondcont .clark_row {
        display: flex;
        align-items: center;
        gap: 15px;
    }

    .main_contents .cont2 .flex_secondcont .second_sentence2 {
        width: 100%;
        font-size: 20px;
        margin-top: 0;
        margin-bottom: 0;
    }

    .main_contents .cont2 .flex_secondcont .second_sentence2 p{
        font-size: 16px;
    }

    .main_contents .cont2 .flex_secondcont .clark_statue {
        width: 40%;
        margin-left: 0;
        margin-bottom: 0;
    }

    .main_contents .title_all {
        align-items: flex-start;
    }

    .main_contents .tug {
        display: none;
    }

    .middle_cont {
        padding-bottom: 30px;
    }

    .middle_cont .middle_picture img {
        width: 90%;
    }

    .middle_cont .flex_btn {
        flex-direction: column;
        gap: 15px;
    }

    .middle_cont .common_btn.middle_btn {
        width: 80%;
        margin: 0 auto;
    }

    .middle_cont .common_btn.middle_btn .word{
        font-size: 18px;
    }

    .main_contents .cont3 .flex_thirdcont {
        flex-direction: column;
        gap: 40px;
    }

    .flex_thirdcont .third_picture_left .left_sentences{
        margin: 6% 0 3%;
    }

    .main_contents .cont3 .flex_thirdcont .third_picture_left,
    .main_contents .cont3 .flex_thirdcont .third_picture_right {
        display: block;
        width: 100%;
    }

    .main_contents .school_row {
        display: block;
        text-align: center;
        margin: 0 auto;
    }

    .main_contents .school_img_box {
        width: 85% ;
        margin: 0 auto 20px auto ;
    }

    .main_contents .school_img_box img {
        width: 100%;
        height: auto;
    }

    .left_sentences,
    .right_sentences {
        width: 90%;
        max-width: 100%;
        margin: 0 auto;
        text-align: left;
    }

    .main_contents .cont3 .flex_thirdcont .third_picture_left .left_sentences .left_cont_title,
    .main_contents .cont3 .flex_thirdcont .third_picture_right .right_sentences .right_cont_title {
        margin: 0 0 5px 0;
        font-size: 16px;
    }

    .main_contents .cont3 .flex_thirdcont .third_picture_left .left_sentences .left_cont_sentence,
    .main_contents .cont3 .flex_thirdcont .third_picture_right .right_sentences .right_cont_sentence {
        margin: 0;
        font-size: 13px;
        line-height: 1.4;
    }

    .main_contents .cont3 .title3 .big_titles.small{
        font-size: 32px;
    }

    .main_contents .cont3 .common_btn.center_ver {
        width: 80%;
        margin: 20px auto 10px;
    }

    .main_contents .common_btn {
        font-size: 18px;
    }

    .main_contents .title_all .title_pc{
        display: none;
    }

    .main_contents .title_mb{
        display: block;
    }

    .main_contents .sub_title{
        font-size: clamp(16px, 3.5vw, 25px) !important;
    }
}

@media screen and (max-width:700px){
    .main_contents .cont3 .title3 .big_titles.small{
        font-size: 24px;
    }
}

@media screen and (max-width:550px){

    .top{
        margin-top: 75px;
        padding: 15% 7% 12%;
    }

    .top .big_title {
        width: 55.65%;
    }

    .top .title_bar{
        margin-top: 3%;
    }

    .top .small_title{
        font-size: 14px;
        padding-top: 3%;
    }

    .branching_links{
        font-size: 12px;
        padding: 2% 8% 4%;
    }

    .main_contents .btns .btn{
        font-size: 15px;
        padding: 8px 0 12px;
        background-color: #fff;
        color: #00a0ff;
        border-radius: 99px;
        width: 100%;
        border: 1px solid #00a0ff;
    }

    .main_contents .btns .btn .tr{
        left: 47.2%;
        top: 80%;
    }

    .main_contents .btns .btn .tr::before{
        border-bottom: 1px solid #00a0ff;
        border-right: 1px solid #00a0ff;
    }

    .main_contents .big_titles{
        font-size: 22px;
    }

    .main_contents .btns {
        margin: 0% auto 6%;
    }

    .main_contents .sentence{
        font-size: 16px;
    }

    .main_contents .cont1 .cont1_left .three_sentences{
        font-size: 17px;
    }

    .main_contents .cont1 .flex_cont1 .cont1_right img{
        width: 100%;
    }

    .main_contents .cont1 .flex_cont1 .cont1_right .underpicture{
        width: 100%;
        font-size: 16px;
    }

    .main_contents .cont2 .flex_secondcont .clark_img_box .clarkhigh_img{
        width: 100%;
    }

    .main_contents .cont2 .flex_secondcont .clark_img_box .underpicture{
        width: 100%;
        font-size: 16px;
    }

    .main_contents .cont2 .flex_secondcont .clark_info_box{
        width: 100%;
    }

    .main_contents .cont2 .flex_secondcont .second_sentence1{
        font-size: 22px;
    }

    .main_contents .cont2 .flex_secondcont .second_sentence2{
        font-size: 18px;
    }

    .middle_cont .middle_picture img{
        width: 98%;
    }

    .middle_cont .middle_sentence{
        font-size: 3vw;
    }

    .middle_cont .picture_pc{
        display: none;
    }

    .middle_cont .picture_mb{
        display: block;
    }

    .common_btn .btn_pointer{
        right: 10%;
    }

    .main_contents .cont3 .title3 .big_titles.small{
        font-size: 17px;
    }

    .main_contents .cont3 .bottom_btn1 .word{
        font-size: 15px;
        margin-right: 5px;
    }
}