@charset "UTF-8";
@import url("https://fonts.googleapis.com/css2?family=Zen+Kaku+Gothic+New:wght@500;700&display=swap");
html, body, div, span, iframe, h1, h2, h3, h4, h5, h6, p, a, em, img, strong, time, dl, dt, dd, ol, ul, li, form, table, tbody, thead, tr, th, td, article, aside, figure, figcaption, footer, header, nav, section {
  border: 0;
  font-size: 100%;
  font-style: normal;
  margin: 0;
  padding: 0;
  vertical-align: baseline; }

article, aside, footer, header, nav, section, main {
  display: block; }

ol, ul {
  list-style: none; }

table {
  border-collapse: collapse;
  border-spacing: 0; }

button, input, select, textarea {
  background: none transparent;
  border: none;
  outline: none;
  margin: 0;
  padding: 0; }

/* ---------- body ---------- */
html {
  height: -webkit-fill-available; }
  @media only screen and (max-width: 768px) {
    html {
      font-size: 15px; } }

body {
  color: #333;
  font-family: "Zen Kaku Gothic New";
  font-weight: 500;
  line-height: 1;
  min-height: 100vh;
  min-height: -webkit-fill-available;
  -ms-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%; }

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

/* ---------- header ---------- */
#header {
  align-items: center;
	  background:rgba(255,240,0,0.5);
  box-sizing: border-box;
  display: flex;
  gap: 0 30px;
  padding: 25px 30px;
  position: fixed;
  top: -120px;
  transition: top .3s;
  z-index: 9999;
  width: 100%; }
  #header.load {
    top: 0; }
  @media only screen and (max-width: 960px) {
    #header {
      padding: 30px 25px; } }
  @media only screen and (max-width: 768px) {
    #header {
      padding: 10px 10px 0 15px; } }
  #header h1 {
    flex: 1; }
    @media only screen and (max-width: 960px) {
      #header h1 {
        flex: initial;
        width: 240px; } }
  #header nav {
    margin: 0 0 0 auto; }
    @media only screen and (max-width: 960px) {
      #header nav {
        flex: none; } }
    #header nav p {
      display: none; }
      @media only screen and (max-width: 768px) {
        #header nav p {
          background-color: #000;
          box-sizing: border-box;
          display: block;
          height: 40px;
          padding: 13px 8px;
          width: 40px; }
          #header nav p > span {
            display: block;
            height: 100%;
            position: relative; }
            #header nav p > span span {
              background: #fff;
              border-radius: 9999px;
              display: inline-block;
              height: 1px;
              left: 0;
              position: absolute;
              transition: all .3s;
              width: 100%; }
              #header nav p > span span:nth-of-type(1) {
                top: 0; }
                .nav-open #header nav p > span span:nth-of-type(1) {
                  transform: translateY(6.5px) rotate(-30deg); }
              #header nav p > span span:nth-of-type(2) {
                top: calc(50% - .5px); }
                .nav-open #header nav p > span span:nth-of-type(2) {
                  display: none; }
              #header nav p > span span:nth-of-type(3) {
                bottom: 0; }
                .nav-open #header nav p > span span:nth-of-type(3) {
                  transform: translateY(-6.5px) rotate(30deg); } }
    #header nav ul {
      display: flex;
      gap: 0 20px; }
      @media only screen and (max-width: 960px) {
        #header nav ul {
          font-size: 0.95rem; } }
      @media only screen and (max-width: 768px) {
        #header nav ul {
          display: none;
          position: fixed;
          right: 10px;
          top: 51px; } }
      #header nav ul li a {
        color: #000;
        font-weight: 700;
        text-decoration: none; }
        @media only screen and (max-width: 768px) {
          #header nav ul li a {
            background-color: #000;
            color: #fff;
            display: block;
            margin: 0 0 1px;
            padding: 10px 15px; } }
  #header > p {
    width: 80px; }
    @media only screen and (max-width: 1280px) {
      #header > p {
        width: 70px; } }
    @media only screen and (max-width: 960px) {
      #header > p {
        bottom: 20px;
        position: fixed;
        right: 20px; } }
    #header > p a {
      align-items: center;
      aspect-ratio: 1 / 1;
      background-color: #000;
      border-radius: 9999px;
      color: #fff;
      display: flex;
      font-size: 1.2rem;
      justify-content: center;
      letter-spacing: 0.1rem;
      line-height: 1.2;
      text-decoration: none;
      width: 100%; }

/* ---------- footer ---------- */
#footer {
  background-color: #FFF000;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 100px 0;
  text-align: center; }

/* ---------- main ---------- */
main {
  opacity: 0;
  transition: opacity 1s 1s; }
  main.load {
    opacity: 1; }

/* ---------- section ---------- */
.section {
  margin: 0 auto;
  max-width: 1000px;
  padding: 0 40px 90px; }
  @media only screen and (max-width: 768px) {
    .section {
      padding: 0 20px 50px; } }
  .section h2 {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.2;
    padding: 0 0 50px; }
    @media only screen and (max-width: 768px) {
      .section h2 {
        font-size: 2.2rem;
        padding: 0 0 35px; } }

.fade {
  opacity: 0;
  transition: opacity 1s; }
  .fade._done {
    opacity: 1; }

.sp {
  display: none; }
  @media only screen and (max-width: 768px) {
    .sp {
      display: block; } }

/* ---------- particles ---------- */
#particles {
  align-items: center;
  background-color: #FFF000;
  display: flex;
  gap: 0 40px;
  justify-content: center;
  margin: 0 0 100px;
  padding: 180px 50px 80px 30px;
  position: relative;
  z-index: 0; }
  @media only screen and (max-width: 1280px) {
    #particles {
      padding: 150px 50px 80px 30px; } }
  @media only screen and (max-width: 960px) {
    #particles {
      padding: 130px 50px 80px 30px; } }
  @media only screen and (max-width: 768px) {
    #particles {
      margin: 0 0 60px;
      padding: 100px 20px 60px; }
      #particles p.jp {
        display: none; } }
  #particles p {
    opacity: 0;
    transition: opacity .5s .8s; }
  #particles canvas {
    height: 100%;
    opacity: 0;
    position: absolute;
    top: 0;
    transition: opacity .3s .3s;
    width: 100%;
    z-index: -1; }
  #particles.load canvas,
  #particles.load p {
    opacity: 1; }

/* ---------- overview ---------- */
@media only screen and (max-width: 768px) {
  #overview h2 {
    display: none; } }
#overview p {
  font-size: 0.95rem;
  line-height: 1.8;
  padding: 0 0 20px; }
  #overview p:last-child {
    padding: 30px 0 0; }
    @media only screen and (max-width: 768px) {
      #overview p:last-child {
        padding: 10px 0 0; } }
  #overview p.jp {
    display: none; }
    @media only screen and (max-width: 768px) {
      #overview p.jp {
        display: block;
        padding: 0 0 40px;
        text-align: center; } }

/* ---------- speakers ---------- */
#speakers {
  background-color: #FFF000;
  margin: 0 0 100px;
  padding: 90px 0 0; }
  @media only screen and (max-width: 768px) {
    #speakers {
      margin: 0 0 60px;
      padding: 50px 0 0; } }
  #speakers ul {
    display: flex;
    flex-wrap: wrap;
    gap: 20px 40px; }
    @media only screen and (max-width: 768px) {
      #speakers ul {
        gap: 30px 20px; } }
    #speakers ul li {
      position: relative;
      text-align: center;
      width: calc((100% - 120px) / 4); }
      @media only screen and (max-width: 768px) {
        #speakers ul li {
          width: calc((100% - 40px) / 3); } }
      #speakers ul li p.face {
        cursor: pointer; }
        @media only screen and (max-width: 768px) {
          #speakers ul li p.face {
            padding: 0 10px; } }
        #speakers ul li p.face img {
          border-radius: 9999px; }
      #speakers ul li p.name {
        font-size: 0.9rem;
        font-weight: 700;
        padding: 15px 0 10px; }
        @media only screen and (max-width: 768px) {
          #speakers ul li p.name {
            font-size: 0.85rem; } }
      #speakers ul li p.title {
        font-size: 0.7rem;
        line-height: 1.4; }
      #speakers ul li p.profile {
        background-color: #fff;
        border: #000 1px solid;
        border-radius: 5px;
        box-sizing: border-box;
        display: none;
        font-size: 0.7rem;
        line-height: 1.4;
        padding: 5px 10px;
        position: absolute;
        text-align: left;
        width: 100%;
        z-index: 1; }
        @media only screen and (max-width: 768px) {
          #speakers ul li p.profile {
            width: 200%; } }
      @media only screen and (max-width: 768px) {
        #speakers ul li:nth-child(3n+2) p.profile {
          left: -50%; }
        #speakers ul li:nth-child(3n) p.profile {
          right: 0; } }

/* ---------- timetable ---------- */
#timetable > section {
  padding: 0 0 25px; }
  #timetable > section h3 {
    display: inline-block;
    font-size: 3rem;
    padding: 0 0 35px; }
    @media only screen and (max-width: 768px) {
      #timetable > section h3 {
        font-size: 2.4rem; } }
    #timetable > section h3::before {
      border-bottom: #000 1px solid;
      content: "日時";
      display: block;
      font-size: 0.95rem;
      margin: 0 0 10px;
      padding: 0 0 10px; }
    #timetable > section h3 span {
      font-size: 1.5rem; }
  #timetable > section > section {
    box-shadow: 0 0 5px 0 rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    margin: 0 0 25px;
    padding: 20px; }
    @media only screen and (max-width: 768px) {
      #timetable > section > section {
        padding: 20px 10px 10px; } }
    #timetable > section > section h4 {
      font-size: 1.2rem;
      padding: 0 0 20px 5px; }
      #timetable > section > section h4 em {
        color: #FF3300;
        font-size: 1rem;
        padding: 0 0 0 10px; }
    #timetable > section > section > div {
      display: flex;
      gap: 10px 20px; }
      @media only screen and (max-width: 768px) {
        #timetable > section > section > div {
          flex-direction: column; } }
      #timetable > section > section > div section {
        background-color: #f5f5f5;
        border-radius: 8px;
        box-sizing: border-box;
        padding: 20px 15px 15px;
        width: 100%; }
        @media only screen and (max-width: 768px) {
          #timetable > section > section > div section {
            padding: 15px 10px 10px; } }
        #timetable > section > section > div section h5 {
          align-items: center;
          display: flex;
          flex-wrap: wrap;
          font-feature-settings: "palt";
          font-size: 0.9rem;
          line-height: 1.3;
          gap: 10px;
          padding: 0 0 20px; }
          #timetable > section > section > div section h5 em {
            background-color: #FFF000;
            border: #000 1px solid;
            border-radius: 9999px;
            font-size: 1rem;
            line-height: 1;
            padding: 5px 15px;
            white-space: nowrap; }
        #timetable > section > section > div section ul {
          display: flex;
          flex-wrap: wrap;
          gap: 15px; }
          #timetable > section > section > div section ul li {
            display: flex;
            gap: 0 10px;
            width: calc((100% - 15px) / 2); }
            #timetable > section > section > div section ul li p.face {
              width: 70px; }
              @media only screen and (max-width: 768px) {
                #timetable > section > section > div section ul li p.face {
                  width: 60px; } }
              #timetable > section > section > div section ul li p.face img {
                border-radius: 9999px; }
            #timetable > section > section > div section ul li div {
              flex: 1;
              margin: 0 0 0 auto; }
              #timetable > section > section > div section ul li div p.name {
                font-size: 0.8rem;
                font-weight: 700;
                line-height: 1.2;
                padding: 5px 0 3px; }
              #timetable > section > section > div section ul li div p.title {
                font-size: 0.7rem;
                line-height: 1.2; }
    #timetable > section > section.one > div section ul li {
      width: calc((100% - 60px) / 5); }
      @media only screen and (max-width: 960px) {
        #timetable > section > section.one > div section ul li {
          width: calc((100% - 30px) / 3); } }
      @media only screen and (max-width: 768px) {
        #timetable > section > section.one > div section ul li {
          width: calc((100% - 15px) / 2); } }
#timetable > p {
  line-height: 1.8; }

/* ---------- about ---------- */
#about dl {
  display: flex;
  flex-direction: column;
  gap: 30px 0; }
  @media only screen and (max-width: 768px) {
    #about dl {
      gap: 20px 0; } }
  #about dl div {
    display: flex;
    gap: 10px; }
    @media only screen and (max-width: 768px) {
      #about dl div {
        flex-direction: column; } }
    #about dl div dt {
      border-bottom: #999 1px solid;
      line-height: 1.8;
      width: 130px; }
      @media only screen and (max-width: 768px) {
        #about dl div dt {
          font-size: 0.9rem;
          font-weight: 700;
          padding: 0 0 5px;
          width: 100%; } }
    #about dl div dd {
      border-bottom: #ccc 1px solid;
      line-height: 1.8;
      padding: 0 0 5px;
      width: calc(100% - 140px); }
      @media only screen and (max-width: 768px) {
        #about dl div dd {
          border-bottom: none;
          width: 100%; } }
      #about dl div dd p {
        padding: 0 0 5px; }

/* ---------- venue ---------- */
#venue iframe {
  height: 450px;
  margin: 0 0 40px;
  width: 100%; }
  @media only screen and (max-width: 768px) {
    #venue iframe {
      height: 350px; } }
#venue p {
  line-height: 1.8; }

/* ---------- partner ---------- */
#partner ul {
  display: flex;
  flex-wrap: wrap;
  gap: 20px; }
  @media only screen and (max-width: 640px) {
    #partner ul {
      gap: 10px; } }
  #partner ul li {
    border: #fff 1px solid;
    box-sizing: border-box;
    padding: 5px;
    width: calc((100% - 60px) / 4); }
    @media only screen and (max-width: 960px) {
      #partner ul li {
        width: calc((100% - 40px) / 3); } }
    @media only screen and (max-width: 640px) {
      #partner ul li {
        width: calc((100% - 10px) / 2); } }