* {
  box-sizing: border-box;
}

body {
  font-family: "A1 Gothic R", "Noto Sans CJK JP", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", "ヒラギノ角ゴ Pro W3", "メイリオ", sans-serif;
}

#kv {
  height: 100lvh;
  margin: 0;
  position: relative;
}

#kv .title-lead,
#kv .title-main {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: opacity 1.0s ease;
}
#kv .title-lead {
  height: 80lvh;
}
#kv .title-main {
  opacity: 0;
  width: 80vw;
  max-width: 1000px;
}

#kv picture {
  display: none;
}

img {
  display: block;
}

article {
  max-width: 100%;
}

.content_wrap {
  background-color: transparent;
}

#yodogawa {
  background-color: #ffffff;
}

#yodogawa,
.information_default {
  padding: 40px 28px;
  line-height: 1.8;
}

#yodogawa p {
  margin: 0;
}

#yodogawa.bd_t.bd_none {
  margin-top: 0;
}

.info_plane_txt {
  margin-bottom: 0;
}

.information_default {
  background-color: #ffffff;
  width: 100%;
  max-width: 100%;
  margin-top: 30px;
}

#information li, #information_free li {
  padding: 0;
}

.information_default h3 {
  font-family: "A1 Gothic M", "Noto Sans CJK JP", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", "ヒラギノ角ゴ Pro W3", "メイリオ", sans-serif;
  font-weight: bold;
  font-size: 1.625rem;
  text-decoration: underline;
  text-decoration-color: #FFD900;
  text-decoration-thickness: 8px;
  text-underline-offset: -2px;
  text-align: center;
}

.text-body {
  margin-inline: auto;
  text-align: left;
  max-width: 100%;
}

.about-meeting dl {
  margin-top: 1.75rem;
}

.about-meeting dt {
  margin-top: 0.75rem;
}
.about-meeting dd {
  margin-top: 0.25rem;
}

.place-image {
  margin-block: 1.875rem;
  display: grid;
  grid-template-areas:
    "img1 img2"
    "img1 img3";
  grid-template-columns: 2.2790697674fr 1fr;
  gap: 5px;
  width: fit-content;
  margin-inline: auto;
  max-width: 572px;
}
.place-image img:nth-child(1) {
  grid-area: img1;
}
.place-image img:nth-child(2) {
  grid-area: img2;
}
.place-image img:nth-child(3) {
  grid-area: img3;
}

ul.annotation {
  list-style-type: '※ ';
  margin-left: 0.5rem;
}

.about-meeting dt {
  font-family: "A1 Gothic M", "Noto Sans CJK JP", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", "ヒラギノ角ゴ Pro W3", "メイリオ", sans-serif;
  font-weight: bold;
  font-size: 1.125rem;
}

.about-session {
  width: fit-content;
}

.about-session p {
  margin-top: 0.875rem;
}

.talk-title {
  margin-top: 1.75rem;
}

.time-schedule-list {
  margin-top: 2rem;
  max-width: 480px;
  margin-inline: auto;
}
.time-schedule-list dl {
  font-size: 0.9375rem;
  text-align: left;
  border-left: 3px solid #000000;
}
.time-schedule-list dl:last-of-type {
  border-left-color: transparent;
}

.time-schedule-list dt {
  line-height: 1;
  position: relative;
}
.time-schedule-list dt::before {
  content: "";
  position: absolute;
  width: 24px;
  height: 24px;
  background-color: #000000;
  clip-path: circle(45% at 50% 50%);
  left: -13.5px;
  top: -5px;
}
.time-schedule-list dt,
.time-schedule-list dd {
  padding-left: 36px;
}
.time-schedule-list dd {
  padding-top: 0.5rem;
  padding-bottom: 1.75rem;
}
.time-schedule ul.annotation {
  font-size: 0.875rem;
  text-align: left;
}
.information_default .time-schedule h3 {
  text-align: center;
}

.howto-attend a {
  display: flex;
  width: fit-content;
  margin-inline: auto;
  margin-top: 30px;
  padding: 16px 32px;
  justify-content: center;
  align-items: center;
  gap: 10px;

  font-family: "A1 Gothic M", "Noto Sans CJK JP", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", "ヒラギノ角ゴ Pro W3", "メイリオ", sans-serif;
  font-weight: bold;
  font-size: 1.25rem;
  line-height: 1.5;

  border-radius: 90px;
  background-color: #000000;
  color: rgba(255, 255, 255, 0.95);

  transition: all 0.2s ease 0.05s;
}

.howto-attend a[target="_blank"]::after {
  display: none;
}

.about-inquiry {
  width: fit-content;
  margin-inline: auto;
}
.about-inquiry p {
  margin-top: 1.25rem;
}

.check-before-applying {
  max-width: 550px;
  margin-top: 30px;
  margin-inline: auto;
  padding: 30px;
  border: 1px solid #000000;
  text-align: left;
}

.session-profile {
  margin-top: 20px;
}
.session-profile:not(:last-child) {
  margin-bottom: 40px;
}
.session-profile ul {
  display: flex;
  flex-direction: column;
  gap: 30px;
  width: fit-content;
  margin-inline: auto;
}
.session-profile li {
  width: 250px;
}
.profile-icon {
  width: 170px;
  margin-inline: auto;
}
.session-profile dt,
.session-profile dd {
  display: flex;
  flex-direction: column;
  text-align: left;
  align-items: center;
  font-feature-settings: "halt";
}
.session-profile dt {
  font-family: "A1 Gothic M", "Noto Sans CJK JP", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", "ヒラギノ角ゴ Pro W3", "メイリオ", sans-serif;
  font-weight: bold;
  gap: 4px;
}
.session-profile dd {
  font-size: 0.875rem;
  gap: 10px;
}
.session-profile button {
  display: flex;
  padding: 8px 20px;
  justify-content: center;
  align-items: center;
  border-radius: 40px;
  background-color: #000;
  color: #ffffff;
  font-family: "A1 Gothic M", "Noto Sans CJK JP", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", "ヒラギノ角ゴ Pro W3", "メイリオ", sans-serif;
  font-weight: bold;
  font-size: 1rem;
  cursor: pointer;
  border: none;
}

@media (min-width: 641px) {
  #yodogawa .inner,
  .about-meeting.text-body {
    width: 420px;
    white-space: no-wrap;
  }

  #kv .title-main {
    width: 50vw;
  }

  #yodogawa,
  .information_default {
    padding: 60px 28px;
  }
  .information_default h3 {
    font-size: 1.875rem;
    text-align: left;
  }
  #yodogawa .inner,
  .about-meeting.text-body {
    width: 420px;
    white-space: nowrap;
  }
  .time-schedule-list dl {
    white-space: nowrap;
  }

  .howto-attend a {
    font-size: 1.625rem;
    padding: 26px 60px;
  }

  .check-before-applying {
    padding: 40px;
  }

  .session-profile {
    margin-top: 40px;
  }
  .session-profile:not(:last-child) {
    margin-bottom: 60px;
  }
  .session-profile ul {
    flex-direction: row;
    gap: 66px;
  }
}

@media (hover: hover) {
  .howto-attend a:hover,
  .session-profile button:hover {
    background-color: #444444;
    color: #ffffff;
  }
}

.prof-dialog {
  background-color: transparent;
  border: none;
  padding: 0 4px;
}
.prof-dialog form {
  background-color: rgba(255, 217, 0, 0.95);
  border-radius: 20px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 670px;
  padding-block: 60px;
}
.dialog-profile {
  padding-inline: 26px;
}
.dialog-qlife {
  padding: 0 15px;
  margin-top: 20px;
}
.dialog-name {
  line-height: 1.5;
  margin-top: 4px;
  font-family: "A1 Gothic M", "Noto Sans CJK JP", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", "ヒラギノ角ゴ Pro W3", "メイリオ", sans-serif;
  font-weight: bold;
}
.dialog-description {
  text-align: left;
  margin-top: 20px;
}
.dialog-logo {
  margin-inline: auto;
  margin-top: 24px;
}
::backdrop {
  background-color: rgba(0, 0, 0, 0.8);
}
dialog::backdrop {
  background-color: rgba(0, 0, 0, 0);
  transition: background-color 0.3s, display 0.3s;
}

dialog[open]::backdrop {
  background-color: rgba(0, 0, 0, 0.8);
}

@starting-style {
  dialog[open]::backdrop {
    background-color: rgba(0, 0, 0, 0);
  }
}
body:has(dialog[open]) {
  overflow: hidden;
}

.close-dialog {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 20px;
  height: 20px;
  padding: 0;
  background-color: transparent;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  border: none;
}
.close-dialog img {
  width: 100%;
}
@media (min-width: 641px) {
  .dialog-profile {
    padding-inline: 130px;
  }
  .dialog-qlife {
    padding: 0 60px;
  }
}