@charset "UTF-8";

* {
    scroll-behavior: smooth;
}

body {
    font-family: "Noto Sans JP", serif;
    margin: 0;
    background-color: #E3F7FF;
    color: #333333;
}

.serif {
    font-family: "Noto Serif JP", serif;
}

.crimson {
    font-family: "Crimson Text", serif;
}

img {
    max-width: 100%;
    width: auto;
    height: auto;
    vertical-align: bottom;
}

a[target="_blank"] {
    position: relative;
}

a[target="_blank"]::after {
    content: url(../img/common/ico_out.svg);
    margin-left: 8px;
}

.clearfix::after {
    content: '';
    display: block;
    clear: both;
}

/* header footer start */
header .inner {
    position: relative;
    width: 88%;
    margin: 0 auto;
    height: 90px;
}

header .inner .wrap {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    height: 100%;
    margin-right: 124px;
}

header .inner .wrap .logo {
    display: flex;
    align-items: center;
    width: calc(223px + 12px + 62px);
    margin-right: 1.5vw;
}

header .inner .wrap .logo img:nth-of-type(1) {
    width: 223px;
    margin-right: 12px;
}

header .inner .wrap .logo img:nth-of-type(2) {
    width: 62px;
}

header .inner .wrap .nav {
    display: flex;
    padding-bottom: 5px;
    column-gap: 2vw;
}

header .inner .wrap .nav .item {
    position: relative;
    color: #0068B7;
    font-family: "Noto Serif JP", serif;
    font-size: 1vw;
    text-decoration: none;
    padding: 0 1px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    font-weight: bold;
}

header .inner .wrap .nav .item::before {
    content: '';
    display: inline-block;
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    right: 0;
    bottom: 0;
    transform: scaleX(0);
    background: linear-gradient(180deg, transparent 60%, #ffffff 60%, #ffffff 90%, transparent 90%);
    transition: cubic-bezier(0.4, 0, 0.2, 1) .3s;
    z-index: -1;
}

header .inner .wrap .nav .item::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -1vw;
    transform: translateY(-50%);
    width: 0;
    height: 80%;
    border-left: 1px solid #0068B7;
}

header .inner .wrap .nav .item.last::after {
    content: none;
}

header .inner .wrap .nav .item .ebook {
    display: none;
}

header .inner .wrap .menu-btn {
    display: none;
}

header .inner .wrap .nav .sp-item {
    display: none;
}

header .inner .main-logo {
    position: absolute;
    bottom: 5px;
    right: 0;
    z-index: 1;
}

header .inner .main-logo img {
    height: 30px;
}

#page-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: block;
    background-color: #B9B9B996;
    width: 70px;
    height: 70px;
    z-index: 2;
    border: 1px solid #ffffff;
    box-sizing: border-box;
    cursor: pointer;
}

#page-top span {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    display: inline-block;
    width: 32.3px;
    height: 18.1px;
}

#page-top span::before,
#page-top span::after {
    content: "";
    position: absolute;
    top: 0;
    left: calc(50% - 1px);
    width: 2px;
    height: 24px;
    border-radius: 9999px;
    background-color: #ffffff;
    transform-origin: 50% 1px;
}

#page-top span::before {
    transform: rotate(45deg);
}

#page-top span::after {
    transform: rotate(-45deg);
}

footer {
    background-color: #ffffff;
}

footer .info {
    background-image: url(../img/common/img_footer_01.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    text-align: center;
    padding: 4% 0 3%;
    box-sizing: border-box;
}

footer .info .logo {
    text-align: center;
}

footer .info .logo img {
    width: 454px;
}

footer .info .nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    column-gap: 42px;
    margin: 2% auto;
}

footer .info .nav .item {
    position: relative;
    padding: 0 2px;
    font-size: 18px;
    color: #fff;
    text-decoration: none;
    z-index: 1;
    display: flex;
    align-items: center;
}

footer .info .nav .item::before {
    content: '';
    display: inline-block;
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    right: 0;
    bottom: 0;
    transform: scaleX(0);
    background: linear-gradient(180deg, transparent 60%, #0068B7 60%, #0068B7 90%, transparent 90%);
    transition: cubic-bezier(0.4, 0, 0.2, 1) .3s;
    z-index: -1;
}

footer .info .nav .item::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -21px;
    transform: translateY(-50%);
    width: 0;
    height: 80%;
    border-left: 1px solid #ffffff;
}

footer .info .nav .item:last-child:after {
    content: none;
}

footer .about {
    text-align: center;
    padding: 2% 0;
    box-sizing: border-box;
}

footer .about .logo-kobelco {
    display: none;
}

footer .about .nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    column-gap: 42px;
    margin: 18px auto;
}

footer .about .nav .item {
    position: relative;
    padding: 0 2px;
    font-size: 18px;
    text-decoration: none;
    color: #333333;
}

footer .about .nav .item::before {
    content: '';
    position: absolute;
    top: 50%;
    right: -21px;
    transform: translateY(-50%);
    width: 0;
    height: 80%;
    border-left: 1px solid #333333;
}

footer .about .nav .item:last-child::before {
    content: none;
}

footer .about .copyright {
    margin-top: 38px;
    font-size: 14px;
}

/* header footer end */

.breadcrumb {
    background-color: #ffffff;
}

.breadcrumb .inner {
    max-width: 1200px;
    width: 80%;
    margin: 0 auto;
    height: 70px;
    display: flex;
    align-items: center;
}

.breadcrumb .inner .item {
    position: relative;
    color: #333;
    text-decoration: none;
}

.breadcrumb .inner a.item::after {
    content: '';
    display: inline-block;
    width: 4px;
    height: 4px;
    border-top: 2px solid #333333;
    border-right: 2px solid #333333;
    transform: rotate(45deg) translateY(-1px);
    margin: 0 8px 0 6px;
}

.breadcrumb .inner span.item {
    color: #0068B7;
    font-weight: bold;
}

a.link-btn {
    position: relative;
    display: flex;
    align-items: center;
    width: 280px;
    min-width: max-content;
    background-color: #fff;
    border: 2px solid #0068B7;
    padding: 6px 23px;
    font-weight: bold;
    font-size: 20px;
    box-sizing: border-box;
    text-decoration: none;
    color: #0068B7;
    transition: cubic-bezier(0.4, 0, 0.2, 1) .3s;
    z-index: 1;
}

a.link-btn::before {
    content: '\025b6';
    font-size: 12px;
    margin-right: 12px;
}

a.link-btn:after {
    content: '';
    display: inline-block;
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    margin: 0;
    background-color: #0A3B7A;
    transition: cubic-bezier(0.4, 0, 0.2, 1) .3s;
    z-index: -1;
}

.ttl-box .en-ttl {
    font-size: 157px;
    color: #0A3B7A;
    font-family: "Crimson Text", serif;
    font-weight: bold;
    margin: 0;
    line-height: 1.2;
}

.ttl-box .ttl {
    font-size: 32px;
    font-weight: 600;
    margin: 0;
    font-family: "Noto Serif JP", serif;
}

.page-title {
    margin-left: 6%;
    display: flex;
    column-gap: 45px;
}

.page-title .desc {
    align-self: flex-start;
    background-color: #0A3B7A;
    width: 100%;
    margin-top: 66px;
}

.page-title .desc .text {
    color: #fff;
    padding: 22px 50px;
    box-sizing: border-box;
    font-size: 22px;
    font-family: "Noto Serif JP", serif;
    margin: 0;
}

.greeting {
    overflow-x: hidden;
}

.greeting-inner {
    max-width: 1384px;
    width: 90%;
    background-color: #fff;
    margin: 5% auto;
    padding: 5% 0 5% 5vw;
    box-sizing: border-box;
}

.greeting-inner>*{
    margin-right: 14vw;
}

.greeting-inner .ttl {
    color: #0068B7;
    font-size: 56px;
    margin-top: 0;
    margin-bottom: 0;
    font-weight: bold;
}

.greeting-inner .sub {
    color: #0068B7;
    font-size: 27px;
    font-weight: 500;
    margin-top: 0;
    margin-bottom: 5%;
}

.greeting-inner .sub2 {
    color: #0068B7;
    font-size: 22px;
    font-weight: 500;
    margin-top: 0;
    margin-bottom: 0;
}

.greeting-inner .img {
    float: right;
    margin-left: 62px;
    margin-right: 0;
    margin-top: 40px;
    margin-bottom: 40px;
    max-width: 785px;
    width: 61%;
}

.greeting-inner p {
    margin-top: 28px;
    margin-bottom: 28px;
    font-size: 18px;
    font-family: "Noto Serif JP", serif;
    line-height: 1.8;
}

.greeting-inner p span.nobr {
    display: inline-block;
}

.greeting-inner .sign {
    font-size: 22px;
    font-family: "Noto Serif JP", serif;
    font-weight: 400;
    text-align: right;
}

.greeting-inner .sign b {
    font-size: 30px;
    margin-left: 1em;
    font-weight: 500;
}

.episode-list {
    max-width: 1384px;
    width: 90%;
    margin: 5% auto;
    box-sizing: border-box;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    column-gap: 32px;
    row-gap: 42px;
}

.episode .box {
    position: relative;
    background-color: #fff;
    padding: 50px 30px;
    box-sizing: border-box;
    text-decoration: none;
    color: #0068B7;
}

.episode .box .num {
    position: absolute;
    top: -23px;
    left: 0;
    background-color: #0068B7;
    color: #fff;
    font-size: 32px;
    padding: 0 32px;
    margin: 0;
    font-weight: 600;
    box-sizing: border-box;
}

.episode .box .img {
    text-align: center;
    margin-bottom: 12px;
}

.episode .box .year {
    font-weight: bold;
    margin: 0;
    font-size: 22px;
}

.episode .box .ttl {
    font-weight: 600;
    margin: 0;
    font-family: "Noto Serif JP", serif;
    font-size: 32px;
}

.episode .box .sub {
    display: block;
    font-weight: 500;
    margin: 0;
    font-family: "Noto Serif JP", serif;
    font-size: 18px;
}

.episode-detail {
    max-width: 1100px;
    width: 90%;
    margin: 5% auto;
    box-sizing: border-box;
}

.episode-detail .box {
    padding: 50px 40px;
}

.episode-detail .box .num {
    font-size: 26px;
    padding: 10px 25px;
}

.episode-detail .box .ttl-wrap {
    display: flex;
    align-items: flex-start;
    column-gap: 34px;
}

.episode-detail .box .ttl-wrap .year {
    font-weight: normal;
    border-bottom: 1px solid #0068B7;
    width: 150px;
    transform: translateY(5px);
}

.episode-detail .box .ttl-wrap .ttl {
    width: calc(100% - 184px);
    font-size: 52px;
    line-height: 1.3;
}

.episode-detail .box .ttl-wrap .sub {
    font-size: 32px;
}

.episode-detail .box .pic-caption {
    text-align: right;
    color: #333;
}

.episode-detail .box .img {
    margin-top: 24px;
}

.episode-detail .text-contents {
    max-width: 800px;
    margin: 46px auto;
}

.episode-detail .text-contents p {
    font-weight: 500;
}

.episode-detail .white-box {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 30px;
    box-sizing: border-box;
    background-color: #fff;
}

.episode-detail .white-box .ttl {
    font-size: 22px;
    color: #0068B7;
    font-weight: bold;
    text-align: center;
    margin-top: 0;
    margin-bottom: 40px;
}

.episode-detail .white-box .columns {
    display: grid;
    place-content: center;
}

.episode-detail .white-box .columns.two {
    display: block;
    -webkit-columns: 2 auto;
    -moz-columns: 2 auto;
    columns: 2 auto;
}

.episode-detail .white-box .columns.marginLR50 {
    margin: 0 50px;
}

.episode-detail .white-box .columns p {
    margin: 0;
    font-weight: bold;
    line-height: 2;
}

.episode-detail .white-box .columns ul {
    list-style: none;
    padding-left: 1em;
    margin: 0;
}

.episode-detail .white-box .columns ul li {
    text-indent: -1em;
    padding-left: 1em;
}

.episode-detail .img-left {
    float: left;
    margin-right: 1em;
    max-width: 285px;
}

.episode-detail .img-right {
    float: right;
    margin-left: 2em;
    max-width: 285px;
}

.episode-detail .img-wrap {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    column-gap: 14px;
}

.episode-detail .img-wrap>div {
    width: calc(50% - 7px);
    text-align: center;
}

.episode-detail .text-contents .caption {
    font-size: 14px;
    color: #808080;
}

.navi-button {
    display: flex;
    justify-content: center;
    column-gap: 26px;
    margin: 68px auto;
}

@media (hover: hover) and (pointer: fine) {
    .breadcrumb .inner a.item:hover {
        color: #0A3B7A;
    }

    header .inner .wrap .nav .item:hover::before {
        transform: scaleX(1);
    }

    #page-top:hover {
        transition: cubic-bezier(0.4, 0, 0.2, 1) .3s;
        background-color: #0A3B7A;
    }

    footer .info .nav .item:hover::before {
        transform: scaleX(1);
    }

    footer .about .nav .item:hover {
        background: linear-gradient(180deg, transparent 60%, #B9B9B996 60%, #B9B9B996 90%, transparent 90%);
        transition: cubic-bezier(0.4, 0, 0.2, 1) .3s;
    }

    .link-btn:hover {
        color: #fff;
    }

    .link-btn:hover::after {
        width: 100%;
    }

    .episode a.box:hover {
        color: #fff;
        background-color: #0A3B7A;
        transition: cubic-bezier(0.4, 0, 0.2, 1) .3s;
    }
}

@media print,
screen and (min-width: 769px) {
    .sp-contents {
        display: none !important;
    }
}

@media print,
screen and (max-width: 1660px) {

    header .inner .wrap .nav {
        column-gap: 1vw;
    }

    header .inner .wrap .nav .item {
        font-size: 1.1vw;
        padding: 0;
    }

    header .inner .wrap .nav .item::after {
        right: calc(-.5vw - 1px);
        height: 60%;
    }
}

@media print,
screen and (max-width: 1366px) {

    header .inner .wrap .nav {
        width: 100%;
        column-gap: 1.6vw;
    }

    header .inner .wrap .nav .item {
        font-size: 1.2vw;
    }

    header .inner .wrap .nav .item::after {
        right: calc(-.8vw - 1px);
        height: 80%;
    }

    footer .info .nav .item,
    footer .about .nav .item {
        font-size: 16px;
    }

    .ttl-box .en-ttl {
        font-size: 110px;
    }

    .ttl-box .ttl {
        font-size: 23px;
    }

    .page-title .desc {
        margin-top: 45px;
    }
}

@media print,
screen and (max-width: 768px) {

    .pc-contents {
        display: none !important;
    }

    header {
        height: 65px;
    }

    /* header footer start */
    header .inner {
        margin: 0;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 65px;
        background-color: #fff;
        z-index: 10;
        border-bottom: 1px solid #ccc;
        box-sizing: border-box;
    }

    header .inner .wrap {
        display: block;
        margin: 0;
    }

    header .inner .wrap .header-logo {
        width: 100%;
        height: 100%;
        background-color: #fff;
        position: relative;
        z-index: 3;
    }

    header .inner .wrap .logo {
        position: absolute;
        top: 17px;
        left: calc(50% - 7px);
        transform: translateX(-50%);
        width: auto;
        z-index: 15;
    }

    header .inner .wrap .logo img:nth-of-type(1) {
        width: 159px;
        margin-right: 7px;
    }

    header .inner .wrap .logo img:nth-of-type(2) {
        width: 42px;
    }

    header .inner .wrap .menu-btn {
        display: block;
        position: absolute;
        top: calc(50% + 6px);
        right: 17px;
        transform: translateY(-50%);
        z-index: 11;
        font-size: 10px;
        color: #0068B7;
        line-height: 1;
    }

    header .inner .wrap .menu-btn span {
        position: relative;
        display: block;
        width: 22px;
        padding-top: 7px;
        border-top: 1px solid #333;
        margin-bottom: 4px;
    }

    header .inner .wrap .menu-btn span::before,
    header .inner .wrap .menu-btn span::after {
        content: '';
        position: absolute;
        display: inline-block;
        border-top: 1px solid #333;
        width: 100%;
        transition: 0.3192s cubic-bezier(0.04, 0.04, 0.12, 0.96) 0.1008s;
    }

    header .inner .wrap .menu-btn span::before {
        top: -7px;
    }

    header .inner .wrap .menu-btn span::after {
        top: 6px;
    }

    header .inner .wrap .menu-btn.active span {
        border-color: transparent;
    }

    header .inner .wrap .menu-btn.active span::before {
        transform: rotate(45deg);
        top: 0;
    }

    header .inner .wrap .menu-btn.active span::after {
        transform: rotate(-45deg);
        top: 0;
    }

    header .inner .wrap .nav {
        display: block;
        position: fixed;
        width: 100%;
        top: 0;
        right: 0;
        transform: translateY(-100%);
        height: 100%;
        padding: 90px 0;
        margin: 0;
        z-index: 2;
        background-color: #fff;
        box-sizing: border-box;
        transition: cubic-bezier(0.4, 0, 0.2, 1) .5s;
    }

    header .inner .wrap .nav.active {
        transform: translateY(0);
    }

    header .inner .wrap .nav .item {
        padding: 6px 0;
        border-top: 1px solid #0068B7;
        max-width: 280px;
        width: 90%;
        margin: 0 auto;
        font-size: 18px;
        font-weight: 600;
        display: flex;
        align-items: center;
    }

    header .inner .wrap .nav .item.last {
        border-bottom: 1px solid #0068B7;
    }

    header .inner .wrap .nav .item .ebook {
        display: inline-block;
        margin-left: 8px;
    }

    header .inner .wrap .nav .sp-item {
        display: block;
        border-top: 1px solid #0068B7;
        box-sizing: border-box;
        max-width: 280px;
        width: 90%;
        margin: 0 auto;
        text-align: center;
        text-decoration: none;
        color: #0068B7;
    }

    header .inner .wrap .nav .sp-item .text {
        font-size: 10px;
        font-family: "Noto Serif JP", serif;
        font-weight: 500;
    }

    header .inner .wrap .nav .sp-item .img {
        margin: 14px auto;
        text-align: center;
    }

    header .inner .wrap .nav .sp-item.official .img img {
        width: 170px;
    }

    header .inner .wrap .nav .sp-item.official {
        margin-top: 60px;
    }

    header .inner .wrap .nav .sp-item:last-child {
        border-bottom: 1px solid #0068B7;
    }

    header .inner .wrap .nav .item::after {
        content: none;
    }

    header .inner .main-logo {
        display: none;
    }

    footer .info {
        padding: 22px;
    }

    footer .info .logo img {
        width: 238px;
    }

    footer .info .nav {
        display: none;
    }

    footer .about {
        padding: 32px 15px;
    }

    footer .about .logo img {
        width: 216px;
    }

    footer .about .nav {
        display: grid;
    }

    footer .about .nav .item {
        display: block;
        width: max-content;
        text-align: left;
        margin: 3px 0;
    }

    footer .about .nav .item::before {
        content: none;
    }

    footer .info .nav .item,
    footer .about .nav .item {
        font-size: 14px;
    }

    footer .about .logo-kobelco {
        display: block;
        width: max-content;
        margin: 30px auto;
    }

    #page-top {
        width: 50px;
        height: 50px;
        bottom: 15px;
        right: 0;
    }

    #page-top span {
        width: 22.4px;
        height: 13.2px;
    }

    #page-top span::before, #page-top span::after {
        width: 2px;
        height: 17px;
    }
    /* header footer end */

    a.link-btn {
        width: 140px;
        font-size: 10px;
        border-width: 1px;
        padding: 3px 12px;
    }

    a.link-btn::before {
        font-size: 10px;
        margin-right: 6px;
    }

    .ttl-box .en-ttl {
        font-size: 75px;
        line-height: 1;
        margin-right: 15px;
    }

    .ttl-box .ttl {
        font-size: 20px;
        margin-right: 15px;
    }

    .page-title {
        display: block;
        margin: 15px 0 15px 15px;
    }

    .page-title .desc {
        margin-top: 15px;
    }

    .page-title .desc .text {
        padding: 12px 15px;
        font-size: 16px;
    }

    .greeting-inner {
        padding: 15px 0 15px 15px;
    }

    .greeting-inner>* {
        margin-right: 15px;
    }

    .greeting-inner .ttl {
        font-size: 24px;
    }

    .greeting-inner .sub {
        font-size: 19px;
    }

    .greeting-inner p {
        font-size: 16px;
        margin-top: 1em;
        margin-bottom: 1em;
    }

    .greeting-inner .img {
        float: none;
        margin-top: 1em;
        margin-bottom: 1em;
        margin-left: 0;
        width: 100%;
    }

    .greeting-inner .sign {
        font-size: 17px;
    }

    .greeting-inner .sign b {
        font-size: 25px;
    }

    .episode-list {
        grid-template-columns: repeat(2, 1fr);
        column-gap: 15px;
        row-gap: 27px;
        margin: 42px auto 30px;
    }

    .episode .box {
        padding: 20px 8px 6px;
    }

    .episode .box .num {
        font-size: 16px;
        padding: 0 15px;
        top: -12px;
    }

    .episode .box .year {
        font-size: 14px;
    }

    .episode .box .ttl {
        font-weight: 700;
        font-size: 16px;
    }

    .episode .box .sub {
        font-size: 14px;
    }

    .episode-detail {
        margin: 42px auto 30px;
    }

    .episode-detail .box .ttl-wrap {
        column-gap: 8px;
    }

    .episode-detail .box .ttl-wrap .year {
        width: 60px;
        transform: none;
    }

    .episode-detail .box .ttl-wrap .ttl {
        width: calc(100% - 68px);
        font-size: 21px;
    }

    .episode-detail .box .ttl-wrap .sub {
        font-size: 16px;
    }

    .episode-detail .box .pic-caption {
        font-size: 14px;
        text-align: left;
    }

    .episode-detail .text-contents {
        margin: 2em auto;
    }

    .episode-detail .white-box {
        padding: 15px;
        display: block;
    }

    .episode-detail .white-box .ttl {
        font-size: 19px;
        margin-bottom: 15px;
    }

    .episode-detail .white-box .columns.two {
        display: grid;
        columns: auto;
    }

    .episode-detail .white-box .columns.marginLR50 {
        margin: 0 auto;
    }

    .episode-detail .white-box .columns p {
        font-size: 14px;
        text-indent: -1em;
        padding-left: 1em;
    }

    .episode-detail .img-left {
        width: 40%;
    }

    .episode-detail .img-right {
        max-width: none;
        float: none;
        margin: 0 auto;
    }

    .episode-detail .text-contents .caption {
        font-size: 12px;
    }

    .episode-detail .img-wrap {
        row-gap: 8px;
    }

    .episode-detail .img-wrap>div {
        width: 100%;
    }

    .episode-detail .img-wrap .caption {
        text-align: left;
    }

    .navi-button {
        margin: 30px auto;
    }
}