/*** The new CSS reset - version 1.11.3 (last updated 25.8.2024) ***/
*:where(:not(html,iframe,canvas,img,svg,video,audio):not(svg *,symbol *)){all:unset;display:revert}*,*::before,*::after{box-sizing:border-box}html{-moz-text-size-adjust:none;-webkit-text-size-adjust:none;text-size-adjust:none}a,button{cursor:revert}ol,ul,menu,summary{list-style:none}ol{counter-reset:revert}img{max-inline-size:100%;max-block-size:100%}table{border-collapse:collapse}input,textarea{-webkit-user-select:auto}textarea{white-space:revert}meter{-webkit-appearance:revert;appearance:revert}:where(pre){all:revert;box-sizing:border-box}::placeholder{color:unset}:where([hidden]){display:none}:where([contenteditable]:not([contenteditable="false"])){-moz-user-modify:read-write;-webkit-user-modify:read-write;overflow-wrap:break-word;-webkit-line-break:after-white-space;-webkit-user-select:auto}:where([draggable="true"]){-webkit-user-drag:element}:where(dialog:modal){all:revert;box-sizing:border-box}::-webkit-details-marker{display:none}

/* Styles */
html {
  font-size: 62.5%;
}

body {
  font: 1.4rem/1.6 -apple-system, BlinkMacSystemFont, "Helvetica Neue", HelveticaNeue, "Segoe UI", "游ゴシック体", YuGothic, "Yu Gothic M", "游ゴシック Medium", "Yu Gothic Medium", "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN W3", HiraKakuProN-W3, "ヒラギノ角ゴ ProN", "Hiragino Kaku Gothic ProN", "ヒラギノ角ゴ Pro", "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, Osaka, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
  color: #fff;
  background: #000;
  -webkit-text-size-adjust: 100%;
  position: relative;
  z-index: 0;
}

@media (min-width: 800px) {
  body {
    font: 1.7rem/1.8 -apple-system, BlinkMacSystemFont, "Helvetica Neue", HelveticaNeue, "Segoe UI", "游ゴシック体", YuGothic, "Yu Gothic M", "游ゴシック Medium", "Yu Gothic Medium", "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN W3", HiraKakuProN-W3, "ヒラギノ角ゴ ProN", "Hiragino Kaku Gothic ProN", "ヒラギノ角ゴ Pro", "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, Osaka, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
  }
}

a {
  color: #fff;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  text-decoration: underline;
}

a:hover {
  text-decoration: none;
}

a:visited {
  color: #fff;
}

a .fa-caret-right {
  background: #ff7907;
  -webkit-box-shadow: 0px 1px 0px #cd5e00;
  box-shadow: 0px 1px 0px #cd5e00;
}

.fa-caret-right {
  position: relative;
  top: -1px;
  width: 18px;
  height: 18px;
  margin-right: 5px;
  background: #7b7b7b;
  border-radius: 50%;
}

.fa-caret-right:before {
  position: relative;
  top: 50%;
  left: 57%;
  display: inline-block;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

* {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

img {
  width: 100%;
}

.inner {
  position: relative;
  width: 90%;
  margin: 0 auto;
}

@media (min-width: 800px) {
  .inner {
    max-width: 1000px;
  }
}

@media (min-width: 1024px) {
  .inner {
    width: 100%;
  }
}

.bnr {
  text-align: center;
}

.close {
  display: inline-block;
  display: none;
  font-size: 1.8rem;
  margin: -14px 0 14px;
  padding: 0 10px;
  border: 1px solid #ccc;
  color: #ccc;
}

@media (min-width: 800px) {
  .close {
    font-size: 2.8rem;
    margin: -30px 0 30px;
    padding: 0 10px;
  }
}

.comingsoon {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 8px 2px;
  font-size: 1.4rem;
  color: #fff;
  background: #7b7b7b;
  border-radius: 5px;
}

.sp_view {
  display: block;
}

.pc_view {
  display: none;
}

@media (min-width: 800px) {
  .sp_view {
    display: none;
  }
  .pc_view {
    display: block;
  }
}

.header-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.header-nav .inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    height: 47px;
    margin: 0 auto;
    max-width: 1024px;
}

.header-nav_logo {
    display: flex;
    gap: 40px;
}

.header-nav_logo > a {
    display: block;
    line-height: 0;
}

.header-nav_logo img {
    width: 107px;
    height: 42px;
}

.header-nav_share {
    display: flex;
    align-items: center;
    gap: 24px;
    max-width: 1024px;
    height: 47px;
}

.header-nav_share a {
    display: flex;
    width: 24px;
}

.header-nav ul {
    display: none;
}

@media(min-width: 1024px) {
    .header-nav ul {
        display:flex;
        justify-content: center;
        align-items: center;
        gap: 24px;
        height: 42px;
        font-size: 15px;
        font-weight: bold;
    }
}

.header-nav ul li a {
    display: block;
    color: #fff;
    text-decoration: none;
}

/* Header links and icons hover effect */
.header-nav_logo > a,
.header-nav_share a,
.header-nav ul li a {
    transition: opacity 0.2s ease;
}

.header-nav_logo > a:hover,
.header-nav_share a:hover,
.header-nav ul li a:hover {
    opacity: 0.7;
}


.main {
  padding-top: 47px;
}

.main h1 {
  line-height: 1;
  text-align: left;
}

.main h2 {
  margin: 0 0 24px;
  line-height: 1.6;
  text-align: left;
}

.main h2:first-child {
  margin-top: 0;
}

@media (min-width: 800px) {
  .main h2 {
    margin: 0 0 32px;
  }
}

.main h3 {
  margin-top: 0;
  margin-bottom: 12px;
  line-height: 1.6;
  text-align: left;
  font-size: 2.0rem;
}

@media (min-width: 800px) {
  .main h3 {
    font-size: 2.4rem;
    margin-bottom: 16px;
  }
}

.main h3:first-child {
  margin-top: 0;
}

.main p {
  font-size: 1.5rem;
  line-height: 1.8;
  small {
    font-size: 1.3rem;
  }
}

@media (min-width: 800px) {
  .main p {
    font-size: 1.9rem;
    small {
      font-size: 1.6rem;
    }
  }
}


.main section {
  width: 100%;
  padding: 48px 0;
}

.main section:nth-of-type(odd) {
  background: #222;
}

.main section:nth-of-type(even) {
  background: #333;
}

@media (min-width: 800px) {
  .main section {
    padding: 64px 0;
  }
}

.main section h2 {
  font-weight: bold;
  font-size: 2.2rem;
}

@media (min-width: 800px) {
  .main section h2 {
    font-size: 3.2rem;
  }
}







.main .about {
  color: #f9f9f9;
  background: #333;
}

.main .about a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  text-decoration: none;
}

.main .about a::before {
  content: '▶';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(90deg, #4a90e2 0%, #8b5ecf 50%, #d946a6 100%);
  font-size: 11px;
  color: #fff;
  flex-shrink: 0;
}


.main .pickup {
  color: #f9f9f9;
  background: #333;
}

.main .column {
}

.main .column .column-box {
  margin-top: 24px;
  display: flex;
  flex-direction: column-reverse;
}

.main .column .column-box > div:last-child {
  margin-bottom: 16px;
}

.main .column .column-box > div:last-child img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

#topics .column-box > div:last-child img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: top center;
}

.main .column .box {
  margin-top: 24px;
}

@media (min-width: 800px) {
  .main .column .column-box {
    flex-direction: row;
    gap: 32px;
    margin-top: 42px;
  }

  .main .column .column-box > div:last-child {
    margin-bottom: 0;
  }
}

@media (min-width: 800px) {
  .main .column .column-box > div {
    flex: 1;
    text-align: left;
  }
  .main .column .column-box > div:last-child {
    flex: 0 0 350px;
  }
  .main .column .column-box > div:last-child img {
    width: 100%;
    height: auto;
    border-radius: 8px;
  }
  #topics .column-box > div:last-child img {
    aspect-ratio: 16 / 9;
    object-fit: cover;
    object-position: top center;
  }
}


.main .column.column-reverse .column-box {
  flex-direction: row-reverse;
}

.main .column ul li {
  margin-top: 8px;
  line-height: 1.8;
}

.main .column ul li a.link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  text-decoration: none;
}

.main .column ul li a.link::before {
  content: '▶';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(90deg, #4a90e2 0%, #8b5ecf 50%, #d946a6 100%);
  font-size: 11px;
  color: #fff;
  flex-shrink: 0;
}

.main .column ul {
  margin-top: 16px;
}

#matome ul {
  list-style: disc;
  padding-left: 20px;
}

#matome ul li {
  display: list-item;
}

.column_3 {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 24px;
}

@media (min-width: 800px) {
  .column_3 {
    flex-direction: row;
    justify-content: space-between;
    gap: 32px;
  }
}

.column_3 li {
  flex: 1;
}

.column_3 li a {
  display: block;
  text-decoration: none;
  color: inherit;
  border-radius: 8px;
  overflow: hidden;
}

.column_3 li a:hover {
  opacity: 0.8;
}

.column_3 li img {
  width: 100%;
  display: block;
}

.column_3 li p {
  margin: 0;
  background: #fff;
  color: #333;
  padding: 12px;
  line-height: 1.5;
}

.main .seminer {
}

.main .seminer .seminer_grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 32px;
}

@media (min-width: 640px) {
  .main .seminer .seminer_grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .main .seminer .seminer_grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }
}

.main .seminer .seminer_card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.main .seminer .seminer_card_image {
  display: block;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.main .seminer .seminer_card_image img {
  width: 100%;
  height: auto;
  display: block;
}

.main .seminer .seminer_card_content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

.main .seminer .seminer_card_content h3 {
  font-size: 1.6rem;
  line-height: 1.5;
  margin: 0;
}

.main .seminer .seminer_card_content p {
  font-size: 1.4rem;
  line-height: 1.7;
  margin: 0;
  flex: 1;
}

.main .seminer .seminer_card_content .btn {
  margin: 0;
  width: 100%;
  text-align: center;
}

@media (min-width: 800px) {
  .main .seminer .seminer_card_content h3 {
    font-size: 1.8rem;
  }

  .main .seminer .seminer_card_content p {
    font-size: 1.5rem;
  }
}

.main .youtube {
}

.main .youtube .movie-main {
  max-width: 800px;
  margin: 24px auto 0;
}

.main .youtube .movie-main iframe {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
}

.main .youtube .movie {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin-top: 8px;
}

.main .youtube .movie li {
  -ms-flex-preferred-size: 48%;
  flex-basis: 48%;
  margin-top: 24px;
}

.main .youtube .movie li:nth-child(odd) {
  margin-right: 4%;
}

@media (min-width: 800px) {
  .main .youtube .movie li {
    -ms-flex-preferred-size: 330px;
    flex-basis: 330px;
    margin-top: 24px;
    margin-right: 16px;
  }
  .main .youtube .movie li:nth-child(odd) {
    margin-right: 16px;
  }
  .main .youtube .movie li:nth-child(3n) {
    margin-right: 0;
  }
}

.main .youtube .movie li div {
  position: relative;
  height: 0;
  padding-top: 56.25%;
  overflow: hidden;
  top: 0;
  left: 50%;
  -webkit-transform: translate(-50%, 0);
  transform: translate(-50%, 0);
}

.main .youtube .movie li div iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.main .youtube .movie a {
  display: block;
  text-decoration: none;
}

.main .youtube .movie a:hover img {
  opacity: .8;
}

.main .youtube .movie div {
  background: #fff;
}

.main .youtube .movie div img {
  width: 100%;
}

.main .youtube .movie p {
  margin-top: 8px;
  font-size: 1.4rem;
  line-height: 1.6;
}

.main .classmethod h2 {
  font-size: 16px;
  color: #999;
  font-weight: normal;
  text-align: center;
  margin-bottom: 12px;
}

.main .classmethod_logo {
  width: 254px;
  margin: 0 auto 30px;
  text-align: center;
}

.main .classmethod p {
  margin-bottom: 20px;
}


footer {
  color: #fff;
  background: #222;
}

footer .inner {
  position: relative;
}

footer .footer-subNav {
  float: left;
  text-align: left;
}

footer .footer-subNav li {
  display: inline-block;
  font-size: 12px;
  margin-right: 28px;
}

footer .footer-subNav li a {
  display: inline-block;
}

footer .copylogo {
  padding: 25px 0;
  clear: both;
  overflow: hidden;
  text-align: center;
  border-top: 1px solid #545454;
}


.main .schedule {
  line-height: 1.6;
}

.main .schedule .schedule_list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 24px;
}

.main .schedule .schedule_item {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  padding: 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.main .schedule .schedule_datetime {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 0;
  flex-shrink: 0;
}

.main .schedule .schedule_date {
  font-size: 1.4rem;
  font-weight: bold;
  color: #fff;
  line-height: 1.3;
}

.main .schedule .schedule_time {
  font-size: 1.3rem;
  color: #ccc;
  line-height: 1.3;
  font-weight: 500;
}

.main .schedule .schedule_tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 1.1rem;
  font-weight: bold;
  color: #fff;
  border-radius: 3px;
  flex-shrink: 0;
  line-height: 1.4;
}

.main .schedule .schedule_tag.orange {
  background: #ef7027;
}

.main .schedule .schedule_tag.blue {
  background: #2c70b3;
}

.main .schedule .schedule_title {
  font-size: 1.4rem;
  line-height: 1.5;
  flex-basis: 100%;
  min-width: 0;
  color: #fff;
}

.main .schedule .schedule_title a {
  color: #fff;
  text-decoration: underline;
}

.main .schedule .schedule_title a:hover {
  text-decoration: none;
}

@media (min-width: 800px) {
  .main .schedule .schedule_list {
    gap: 6px;
  }

  .main .schedule .schedule_item {
    flex-wrap: nowrap;
    padding: 12px 16px;
    gap: 12px;
  }

  .main .schedule .schedule_datetime {
    width: 176px;
    gap: 6px;
  }

  .main .schedule .schedule_date {
    font-size: 1.5rem;
  }

  .main .schedule .schedule_time {
    font-size: 1.4rem;
  }

  .main .schedule .schedule_tag {
    font-size: 1.2rem;
  }

  .main .schedule .schedule_title {
    font-size: 1.6rem;
    flex-basis: auto;
    flex: 1;
  }
}


.main_mv {
  background: #000 url(../images/bk_reinvent_main.png) center/cover no-repeat;
}

.main_mv .inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.main_mv p {
  margin-top: 20px;
}

@media (min-width: 1024px) {
  .main_mv {
    height: 300px;
    background: url(../images/bk_reinvent_main.png) center/cover no-repeat;
  }
  .main_mv h1 {
    max-width: 780px;
    padding: 0;
  }
  .main_mv p {
    margin-bottom: 0px;
    position: relative;
    font-size: 23px;
    text-align: center;
  }
}

.btn {
  display: inline-block;
  position: relative;
  height: 48px;
  line-height: 48px;
  min-width: 270px;
  margin: 16px 16px 0 0;
  padding: 0 50px 0 44px;
  font-size: 17px;
  font-weight: bold;
  color: #fff;
  text-align: center;
  text-decoration: none;
  background: linear-gradient(90deg, #4a90e2 0%, #8b5ecf 50%, #d946a6 100%);
  background-size: 150% 100%;
  background-position: 100% 0%;
  border-radius: 50px;
  box-shadow: 0 4px 15px rgba(120, 80, 180, 0.4);
  transition: all 0.3s ease;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  z-index: -1;
}

.btn::after {
  content: '→';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  transition: transform 0.3s ease;
  z-index: 1;
}

.btn:hover {
  background-position: 0% 0%;
  box-shadow: 0 6px 25px rgba(74, 144, 226, 0.6);
}

.btn:hover::after {
  transform: translate(4px, -50%);
}

.btn:active {
  box-shadow: 0 2px 10px rgba(120, 80, 180, 0.4);
}

.btn > * {
  position: relative;
  z-index: 1;
}

@media (max-width: 799px) {
  .btn {
    display: block;
    width: 100%;
    max-width: 100%;
    min-width: auto;
    margin: 12px auto 0;
  }

  .btn:first-of-type {
    margin-top: 16px;
  }
}

/* Common hover effects */
.main .about a,
.main .column ul li a.link,
.main .schedule .schedule_title a,
.main .seminer .seminer_card_image img,
.main .column .column-box > div:last-child a img {
  transition: opacity 0.2s ease;
}

.main .about a:hover,
.main .column ul li a.link:hover,
.main .schedule .schedule_title a:hover,
.main .seminer .seminer_card_image:hover img,
.main .column .column-box > div:last-child a:hover img {
  opacity: 0.7;
}