body {
  font-family: 'din-2014', Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f8f8f8;
  color: black;
}

section {
  padding: 50px 20px;
}

.container {
  width: 100%;
  margin: 0 auto;
  padding: 0;
  max-width: 1200px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.header {
  background-color: #f1c40f;
  color: #000;
  padding: 50px 20px;
}

.header-content {
  display: flex;
  /* align-items: center; */
  justify-content: space-between;
  height: auto;
  gap: 3vw;
}

.header h1 {
  font-size: 2.5em;
  margin: 0;
  background-color: white;
  padding: 30px 20px;
  position: relative;
}

.header h1 span{
  display: flex;
  width: 100%;
  gap: 4%;
  justify-content: center;
}

.header h1 span img{
  
}

.header h1 span .logo{
  width: 16%;
  object-fit: contain;
  max-width: 80px;
  height: auto;
}

.header h1 span .txt{
  width: 80%;
}

.header h1 img.tri:nth-child(1) {
  position: absolute;
  left: 0;
  top: 0;
}

.header h1 img.tri:nth-child(2) {
  position: absolute;
  right: 0;
  top: 0;
  transform: rotate(90deg);
}

.header h1 img.tri:nth-child(3) {
  position: absolute;
  left: 0;
  bottom: 0;
  transform: rotate(270deg);
}

.header h1 img.tri:nth-child(4) {
  position: absolute;
  right: 0;
  bottom: 0;
  transform: rotate(180deg);
}

.header h2 {
  font-size: 1.5em;
  margin: 10px 0;
  width: 100%;
  display: flex;
  justify-content: center;
  border-left: solid 1px black;
  border-right: solid 1px black;
  border-bottom: none;
  padding: 0px 25px;
}

.header .event-info {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.header .btn {
  background-color: #000;
  color: #fff;
  padding: 10px 20px;
  border: none;
  cursor: pointer;
  width: 100%;
  font-size: 25px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 30px;
  justify-content: center;
  position: relative;
}

.btn .material-symbols-outlined {
  color: black;
  background-color: white;
  font-size: 30px;
  padding: 5px;
  border-radius: 2px;
  position: absolute;
  left: 20px;
  border-radius: 4px;
}

.Opening-Remarks {
  background-color: #fff;
  /* padding: 50px 0; */
}

.Opening-Remarks h2 {
  font-size: 2em;
  /* margin-bottom: 20px; */
  text-align: center;
}

section h2 {
  font-size: 50px !important;
  display: flex;
  width: 100%;
  border-bottom: solid 1px black;
  line-height: 1 !important;
  /* min-height: 80px; */
  padding-bottom: 30px;
}

.Opening-Remarks p {
  font-size: 1.1em;
  line-height: 1.6;
  /* margin-bottom: 20px; */
}

section div.container p {
  font-size: 16px;
  /* display: flex; */
  /* flex-direction: column; */
  /* padding: 25px; */
  gap: 20px;
}

section div.container p strong {
  font-size: 30px;
  color: black;
  line-height: 1.5;
}

.Opening-Remarks .signature {
  text-align: right;
  font-style: normal;
  display: flex;
  flex-direction: column;
  font-size: 16px;
  font-weight: 800;
}

.Opening-Remarks .signature .name {
  text-align: right;
  font-style: normal;
  font-size: 25px;
  line-height: 0;
}

.Organizer {
  background-color: #f8f8f8;
  /* padding: 50px 0; */
}

.Organizer h2 {
  font-size: 2em;
  margin-bottom: 20px;
  text-align: center;
}

.organizer-content {
  display: flex;
  justify-content: space-between;
  gap: 3vw;
}

.organizer-content hr {
  height: auto;
  display: flex;
  width: 1px;
  background-color: black;
}

.chairs {
  display: flex;
  /* flex-wrap: wrap; */
  gap: 30px;
  /* width: 50%; */
  max-width: 525px;
  flex-direction: column;
}


.chairs .inner {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  width: 100%;
  /* max-width: 525px; */
  /* flex-direction: column; */
}

.chair {
  text-align: center;
  /* flex: 1 1 50%; */
  width: calc(50% - 15px);
  background-color: white;
  /* contain-intrinsic-block-size: auto 100px; */
  padding: 25px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

section div.container .chair p {
  display: flex;
  flex-direction: column;
  font-size: 22px;
  font-weight: bold;
  gap: 10px;
}

section div.container .chair p span.name {}

section div.container .chair p span.name {}

h3 {
  font-size: 30px !important;
}

.chair img {
  width: 190px;
  height: auto;
  border-radius: 0;
  margin-bottom: 10px;
}

.committee {
  /* flex: 1 1 50%; */
  display: flex;
  flex-direction: column;
  gap: 30px;
  width: 100%;
}

.committee span.name {
  font-size: 20px;
  font-weight: 100;
  line-height: 1;
  /* display: flex; */
  margin-right: 10px;
}

.committee ul {
  list-style: none;
  padding: 0;
  background-color: white;
  padding: 25px;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.committee li {
  font-size: 16px;
  margin-bottom: 15px;
  padding-bottom: 15px;
  border-bottom: solid 1px #EFEFEF;
  /* display: flex; */
}

.committee li:last-child {
  border-bottom: none;
}

.Fees {
  background-color: #f8f8f8;
  /* padding: 50px 0; */
}

.Fees h2 {
  font-size: 2em;
  /* margin-bottom: 20px; */
  text-align: center;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.Fees h2 span {
  font-size: 16px;
  font-weight: 300;
  text-align: left;
  line-height: 1.5;
}

.fees-content {
  display: flex;
  justify-content: space-between;
  /* margin-bottom: 20px; */
  gap: 3vw;
}

.fee-category {
  flex: 1 1 30%;
  /* background-color: #f8f8f8; */
  padding: 00px;
  border-radius: 10px;
}

.fees-content hr {
  width: 1px;
  display: flex;
  height: auto;
  background-color: black;
}

.fee-category h3 {
  font-size: 1.5em;
  /* margin-bottom: 10px; */
}

.fee-category ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.fee-category li {
  font-size: 1.1em;
  /* margin-bottom: 10px; */
}

.schedule {
  background-color: #fff;
  /* padding: 50px 0; */
}

.schedule h2 {
  font-size: 2em;
  /* margin-bottom: 20px; */
  text-align: center;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.schedule h2 span {
  font-size: 16px;
  font-weight: 300;
  text-align: left;
  line-height: 1.5;
}

.schedule-content {
  display: flex;
  justify-content: space-between;
  /* margin-bottom: 20px; */
  gap: 3vw;
}

.schedule-category {
  flex: 1 1 30%;
  /* background-color: #f8f8f8; */
  padding: 00px;
  border-radius: 10px;
}

.schedule-category img {
  width: 10px;
  height: auto;
  margin-inline: auto;
  position: relative;
  top: -1px;
}

.schedule-content hr {
  width: 1px;
  display: flex;
  height: auto;
  background-color: black;
}

.schedule-category h3 {
  font-size: 1.5em;
  /* margin-bottom: 10px; */
}

.schedule-category ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 00px;
}

.schedule-category li {
  font-size: 1.1em;
  /* margin-bottom: 10px; */
  display: flex;
  width: 100%;
}

.schedule-category li dl {
  display: flex;
  flex-direction: row;
  width: 100%;
  font-size: 17px;
  border: solid 1px #C4C4C4;
  /* min-height: 43px !important; */
  align-items: center;
}

.schedule-category li dl dt {
  min-width: 100px;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #f2f2f2;
  padding: 10px 0px;
  line-height: 1;
}

.schedule-category li dl dd {
  width: 100%;
  font-size: 17px;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  height: 100%;
  padding: 0px 20px;
  line-height: 1.4 !important;
  padding: 10px 20px;
}

.notes {
  font-size: 0.9em;
  color: black;
  display: flex;
  gap: 30px;
  /* flex-direction: column; */
}

.notes p {
  background-color: #fff;
  width: 50%;
  display: flex;
  flex-direction: column;
  padding: 25px;
}

.Abstract {
  background-color: #fff;
  /* padding: 50px 0; */
  text-align: center;
}

.Abstract .Abstract-container {
  display: flex;
  gap: 30px;
  justify-content: space-between;
}

.Abstract .Abstract-inner {
  width: 50%;
  display: flex;
  flex-direction: column;
  /* gap: 30px; */
}

.Abstract .Abstract-inner p {
  font-size: 21px;
  font-weight: 100;
}

.Abstract .Abstract-inner p.send {
  font-size: 16px;
  text-align: left;
}

.Abstract .Abstract-inner a {
  font-size: 23px;
  border-radius: 6px;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.Abstract .Abstract-inner a span {
  background-color: black;
  color: #f1c40f;
}

.Abstract h2 {
  font-size: 2em;
  /* margin-bottom: 20px; */
}

.Abstract p {
  font-size: 1.1em;
  margin-bottom: 20px;
}

.Abstract .btn {
  background-color: #f1c40f;
  color: #000;
  padding: 10px 20px;
  border: none;
  cursor: pointer;
  margin-bottom: 0;
}

section.Registration {
  background-color: #f1c40f;
  padding: 70px 20px;
}

section.Registration a {
  background-color: black;
  color: white;
  text-align: center;
  height: 125px;
  font-size: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 6px;
  position: relative;
}

section.Registration .btn .material-symbols-outlined {
  left: 40px;
}

.Venue {
  background-color: #f8f8f8;
  /* padding: 50px 0; */
  text-align: left;
}

.Venue h2 {
  font-size: 2em;
  margin-bottom: 20px;
}

.venue-content {
  display: flex;
  justify-content: space-between;
  gap: 50px;
}

.venue-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 30px;
  width: 50%;
}

.venue-locate {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.venue-locate a {
  background-color: white;
  color: #000;
  padding: 10px 20px;
  border: none;
  cursor: pointer;
  margin-bottom: 0;
  display: flex;
  font-size: 20px;
  border-radius: 6px;
  border: solid 1px black;
  justify-content: center;
  align-items: center;
  gap: 10px;
  position: relative;
}

.venue-locate a span {
  position: absolute;
  left: 15px;
  background-color: black;
  color: white;
  padding: 5px;
  border-radius: 4px;
}

span.tag_red {
  font-size: 25px;
  color: #c70000;
  line-height: 0;
}

.venue-locate p {
  font-size: 25px !important;
  font-weight: 300;
  line-height: 1.5 !important;
}

.venue-info {
  /* flex: 1 1 50%; */
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

section div.container .venue-info p {
  flex-direction: column;
  display: flex;
  gap: 0;
}

.map {
  flex: 1 1 50%;
}

.map iframe {
  height: 340px;
}

.map img {
  width: 100%;
  height: auto;
  border-radius: 10px;
}

.Venue .btn {
  background-color: #000;
  color: #fff;
  padding: 10px 20px;
  border: none;
  cursor: pointer;
  margin-top: 20px;
}

/* テキストコンテンツのスタイル */
.text-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 50px;
  justify-content: space-between;
  height: auto;
  width: 50%;
}

.text-content h1,
.text-content h2 {}

.event-info p {}

/* ボタンのスタイル */
.btn {}

.btn:hover {}

/* イメージコンテンツのスタイル */
.image-content {
  display: flex;
  flex-direction: column;
  width: 50%;
}

.image-content div {
  height: 50%;
}

.image-content img {
  height: 100%;
  width: 100%;
  object-fit: cover;
}

.chair .name {
  /* 名前に対するスタイルをここに記述 */
  font-size: 20px;
  font-weight: 100;
  line-height: 1;
}

.chair .affiliation {
  /* 所属に対するスタイルをここに記述 */
  font-size: 16px;
  font-weight: 300;
  line-height: 1.25;
}

/* 料金カテゴリ全体のスタイル */
.fee-category {
  /* スタイルをここに記述 */
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* 各リスト項目のスタイル */
.fee-category ul li {
  /* スタイルをここに記述 */
}

/* 定義リスト全体のスタイル */
.fee-category dl {
  /* スタイルをここに記述 */
  display: flex;
  width: 100%;
  justify-content: space-between;
  /* flex-wrap: wrap; */
}

footer {}

footer p {
  display: flex;
  justify-content: center;
}

footer section {
  padding: 50px 20px;
}

@media(max-width:1023px) {
  .fee-category dl {
    flex-direction: column;
    gap: 10px;
  }
}

/* 定義タイトル（項目名）のスタイル */
.fee-category dt {
  /* スタイルをここに記述 */
  line-height: 1.5;
  /* width: 230px; */
}

/* 定義内容（料金）のスタイル */
.fee-category dd {
  /* スタイルをここに記述 */
  display: flex;
  align-items: end;
  font-size: 25px;
  font-weight: 600;
  line-height: 1 !important;
  word-wrap: break-word;
}

/* 見出し（例: "Credit (21 Sep - 1 Oct)"）のスタイル */
.fee-category h3 {
  /* スタイルをここに記述 */
  font-size: 29px !important;
}

@media(max-width:1023px) {
  .schedule-content{ 
    flex-direction: column;
  }
  .organizer-content {
    flex-direction: column;
  }

  .chairs {
    max-width: unset;
  }

  .fee-category dt {
    width: unset;
  }

  section h2 {
    font-size: 35px !important;
  }

  h3 {
    font-size: 25px !important;
  }

  .Opening-Remarks .signature .name {
    font-size: 22px;
  }

  section div.container .chair p span.name, .committee span.name {
    font-size: 18px;
  }

  .fee-category dd {
    font-size: 23px;
  }

  .fee-category h3 {
    font-size: 25px !important;
  }

  section div.container p strong {
    font-size: 25px;
  }

  .Abstract .Abstract-container {
    flex-direction: column;
  }

  .Abstract .Abstract-inner {
    width: 100%
  }

  .venue-content {
    flex-direction: column;
  }

  .venue-inner {
    width: 100%;
  }

  .map {
    width: 100%;
  }

  .map iframe {
    width: 100%;
  }
}

@media(max-width:768px) {
  .fees-content {
    flex-direction: column;
    gap: 30px;
  }

  .fee-category dl {
    flex-direction: row;
  }

  .fee-category {}

  .fees-content hr {
    width: 100%;
    height: 1px;
    background-color: #efdfdf;
  }

  .notes {
    flex-direction: column;
  }

  section div.container p {
    width: 100%;
  }
}

@media(max-width:767px) {
  .header-content {
    flex-direction: column;
  }

  .image-content {
    flex-direction: row;
    order: 1;
    width: 100%;
  }

  .text-content {
    order: 2;
    gap: 30px;
    width: 100%;
  }

  .header {
    padding: 20px;
  }

  .header h1 {
    width: 100%;
    display: flex;
    justify-content: center;
    padding: 4vw 3vw;
  }

  .map iframe {
    height: 250px;
  }

  section.Registration a {
    height: 80px;
    font-size: 25px;
    gap: 20px;
  }

  section.Registration .btn .material-symbols-outlined {
    left: auto;
    position: relative;
  }

  section div.container p {}

  .venue-locate p {
    font-size: 22px !important;
  }

  .Abstract .Abstract-inner a {
    font-size: 17px;
    gap: 10px;
    width: 100%;
  }

  .Abstract .Abstract-inner a span {
    position: relative;
    left: auto;
    font-size: 23px;
  }

  section {
    padding: 30px 20px;
  }

  .committee ul {
    padding: 20px;
  }

  .chairs .inner {
    flex-direction: column;
  }

  .chair {
    width: 100%;
    max-width: 400px;
  }

  .chairs .inner {
    align-items: center;
  }
}