html {
  scroll-behavior: smooth;
  scroll-padding-top: 70px;
}

:root {
  --emerald: #00B8B8;
  --emerald-light: #40E0D0;
  --white: #FFFFFF;
  --navy: #0A1A2F;
  --text-dark: #1A2B3C;
  --gray-light: #F5F7FA;

  /*----- 文字 */
	/* 書体 */
  --font-family: 'Noto Sans JP', 'ヒラギノ角ゴ ProN', 'Hiragino Kaku Gothic ProN', 'メイリオ', Meiryo, 'ＭＳ Ｐゴシック', 'MS PGothic', sans-serif;

}

* ,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--navy);
  color: var(--white);
  font-size: var(--font-main-size);
  font-family: var(--font-family);
}

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


.section {
  padding: 4rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 2rem;
  text-align: center;
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background-color: var(--emerald);
  margin: 0.5rem auto 0;
}

@media screen and (max-width: 768px) {
  .section-title {
    font-size: 1.75rem;
  }  
}

/* ナビゲーション */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 26, 47, 0.9);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  z-index: 9999;
  height: 70px; /* または必要な高さ */
  display: flex;
  justify-content: space-between;
  align-items: center;

}

.nav-left img {
  height: 60px;
}
.nav-left .logo {
  font-size: 1.5rem;
  font-weight: bold;
}

.nav-right ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  align-items: center;
  height: 100%;
  margin: 0;
  padding: 0;
}
.nav-right {
  height: 100%;
  display: flex;
  align-items: center;
}


.nav-right ul li a {
  color: var(--white);
  text-decoration: none;
  font-size: 1rem;
}

.hamburger {
  display: none;
  width: 30px;
  height: 24px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 4px;
  background: var(--white);
  margin-bottom: 5px;
  transition: 0.3s;
}

/* ヒーローセクション */
.hero-section {
  position: relative;
  min-height: 100vh;
  background: url("../img/hero-bakground.png") no-repeat 80% center / contain;
  background-color: var(--navy);
  padding-top: 4rem;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.hero-title-block {
  max-width: 1000px;
  margin-top: 100px;
}

.catchcopy {
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--emerald-light);
  margin-bottom: 0.5rem;
}

.main-title {
  font-size: 3.2rem;
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 0.8rem;
}

.hero-content {
  margin-top: 30px;
  max-width: 600px;
}

.event-info p {
  font-size: 1.8rem;
  margin-bottom: 0.3rem;
}
.event-info p.place {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}
p.admission { 
  font-size: 2.2rem;
  font-weight: 500;
}

.cta-text {
  margin-top: 6rem;
  font-size: 1.1rem;
  color: var(--white);
}

/* CTAボタン */
.cta-buttons {
  display: flex;
  justify-content: flex-start; /* 左揃えに変更 */
  margin-top: 1rem;
}

.btn-gradient {
  font-size: 1.8rem;
  font-weight: bold;
  position: relative;
  display: inline-block;
  padding: 1.2rem 4rem;
  min-width: 320px;
  text-align: center;
  text-decoration: none;
  color: #1A2B3C;
  background: #FFE347;
  border-radius: 100px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

/* 共通のホバーエフェクト */
.btn-gradient:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  background: #FFD700;
}

/* 矢印の追加 */
.btn-gradient::after {
  content: "›";
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2rem;
  font-weight: bold;
  transition: transform 0.3s ease;
}

/* ホバー時の矢印アニメーション */
.btn-gradient:hover::after {
  transform: translate(3px, -50%);
}

/* モバイル対応 */
@media (max-width: 768px) {
  .catchcopy{
    font-size: 1.5rem;
  }
  .main-title{
    font-size: 2.625rem;   
  }
  .cta-buttons {
    justify-content: center;
  }  
  .btn-gradient {
    min-width: 280px;
    font-size: 1.375rem;
    padding: 1rem 3rem;
  }
  .nav-right ul li {
    padding: 0 0 0.5rem;
  }
  .nav-right ul {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem 0;
  }
  .nav-right {
    height: auto;
  }

  .event-info p {
    font-size: 1.5rem;
  }
  .event-info p.place {
    font-size: 1.4rem;
  }
}

/* 開催レポートセクション */
.report-section {
  background-color: var(--white);
  border-radius: 8px;
  padding: 2rem;
}

.report-title {
  font-size: 1.25rem;
  font-weight: bold;
  color: var(--navy);
  text-align: center;
  margin-bottom: 1.5rem;
}

.report-body {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.report-image {
  flex: 0 0 40%;
  max-width: 400px;
}

.report-image img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

.report-content {
  flex: 1;
  color: var(--text-dark);
}

.report-content p {
  line-height: 1.8;
  margin-bottom: 1rem;
}

.report-content p:last-child {
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .report-body {
    flex-direction: column;
  }

  .report-image {
    flex: 0 0 auto;
    max-width: 100%;
    width: 100%;
  }
}

/* プログラムセクション */
.program-section {
  background-color: var(--white);
  border-radius: 8px;
  padding: 2rem;
  margin-bottom: 2rem;
}

.program-part-title {
  font-size: 1.5rem;
  color: var(--emerald);
  margin-bottom: 1rem;
  font-weight: bold;
}

.program-items-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.program-item {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.05);
  padding: 1.5rem;
  border-left: 3px solid var(--emerald);
}
.program-image {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 4px;
}
.program-time {
  font-weight: bold;
  color: var(--emerald);
  margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
  .program-item {
    flex-direction: column;
  }
  .program-image {
    width: 250px;
    height: 150px;
  }
}


.benefit-icon {
  width: 120px;  /* 64px から 120px に拡大 */
  height: 120px; /* 64px から 120px に拡大 */
  margin: 0 auto 1.5rem;
}
.benefit-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* 講演者カード */
.speaker-card {
  background-color: var(--white);
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  overflow: hidden;
  margin-bottom: 2rem;
}

.speaker-icon {
  position: relative;
}
.speaker-icon::before {
  position: absolute;
  display: block;
  background: #40ade0;
  border-radius: 20px;
  color: #fff;
  font-size: 0.875rem;
  font-weight: bold;
  width: 160px;
  height: 30px;
  text-align: center;
  line-height: 30px;
  top: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
}
.speaker-icon.icon-panel::before {
  content: 'パネリスト';
}
.speaker-icon.icon-mode::before {
  content: 'モデレーター';
  background: #9162dd;
}

.speaker-image {
  width: 100%;
  height: 200px;
  object-fit: contain;
  padding-top: 2.25rem;
}

.speaker-info {
  padding: 1.5rem;
  color: var(--text-dark);
}

.speaker-name {
  color: var(--emerald);
  font-size: 1.2rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

/* アクセスセクション */
.access-section-wrapper {
  background: var(--white);
  border-radius: 8px;
  padding: 2rem;
  color: var(--text-dark);
  max-width: 800px;
  margin: 0 auto;
}

.access-container {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.map-box, .access-info {
  flex: 1 1 400px;
  min-width: 300px;
}
/* 地図画像のスタイル */
.map-box {
  flex: 1 1 400px;
}

.map-box img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

/* アクセス情報のスタイル */
.access-info {
  flex: 1 1 300px;
  line-height: 1.8;
  font-size: 14px;
}

.access-info img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin-top: 1.5rem;
  display: block;
}
/* レスポンシブ対応 */
@media (max-width: 768px) {
  .access-section-wrapper {
    padding: 1.5rem;
  }
  
  .access-container {
    gap: 1.5rem;
  }
  
  .map-box,
  .access-info {
    flex: 1 1 100%;
  }
}



.lead-text {
  /*background: rgba(255, 255, 255, 0.05);*/
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 2rem;
}

.lead-text p {
  line-height: 1.8rem;
}

.lead-text ul {
  margin-top: 1rem;
  margin-left: 1.5rem;
}

.lead-text li {
  margin-bottom: 0.5rem;
}

.target-benefits-wrapper {
  background: var(--white);
  color: var(--text-dark);
  border-radius: 8px;
  padding: 2rem;
}

.target-audience p {
  text-align: center;
  font-size: 2rem;
}

@media (max-width: 768px) {
  .target-audience p {
    font-size: 1.625rem;
  }
}

.sub-section-title {
  font-size: 1.3rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.benefits-grid {
  margin-top: 2rem;
}

.benefits-cards {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.benefit-card {
  flex: 1 1 300px;
  background-color: var(--white);
  border-radius: 8px;
  padding: 0rem 2rem 2rem;
  height: 100%;
  transition: transform 0.3s;
}

.benefit-card h4 {
  color: var(--emerald);
  text-align: center;
  margin-bottom: 1rem;
  font-size: 1.4rem;
}

.benefit-card p {
  color: var(--text-dark);
}

/* プログラムセクション */
.program-items-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

/* .program-item {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.05);
  padding: 1.5rem;
} */

.program-content {
  flex: 1;
}

.program-content h4 {
  color: var(--text-dark);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.program-content p {
  color: var(--text-dark);
}

/* メインスピーカー */
.speaker-card.main-speaker {
  flex: 1 1 100%;
  max-width: 800px;
  margin: 0 auto 3rem; /* 中央揃え */
}

.speaker-flex {
  display: flex;
  gap: 2rem;
}

.speaker-image-container {
  flex: 0 0 35%;
  min-width: 280px;
}

.speaker-info {
  flex: 0 0 65%;
  padding: 1.5rem;
}


.speaker-card.main-speaker .speaker-info {
  flex: 1;
  padding: 1.5rem;
}

.speaker-card.main-speaker h3 {
  font-size: 1.8rem;
  color: var(--emerald);
  margin-bottom: 1rem;
}

.speaker-card.main-speaker .speaker-title {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.speaker-card.main-speaker .speaker-bio {
  line-height: 1.6;
  font-size: 1rem;
}

@media (max-width: 968px) {
  .speaker-card.main-speaker,
  .benefits-section {
    max-width: 100%;
    padding: 1.5rem;
    margin: 2rem auto;
  }

  .benefits-section {
    flex-direction: column;
    text-align: center;
  }
  .benefit-card {
    padding: initial;
  }
  .speaker-flex {
    flex-direction: column;
  }

  .speaker-image-container {
    flex: 0 0 auto;
    width: 100%;
  }

  .speaker-info {
    flex: 0 0 auto;
    width: 100%;
  }
}

@media (max-width: 768px) {
  .speaker-card.main-speaker h3 {
    font-size: 1.625rem;
  }
  .speaker-card.main-speaker .speaker-info {
    padding: 0;
  }
}

/* スピーカーセクション */
.speakers-subtitle {
  text-align: center;
  margin: 2rem 0;
  font-size: 1.5rem;
}

.speakers-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}

.speaker-card {
  flex: 1 1 400px;
  max-width: calc(50% - 1rem);
  background-color: var(--white);
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  overflow: hidden;
  margin-bottom: 2rem;
}

.speaker-card .speaker-image-container .speaker-image {
  height: 100%;
  object-fit: cover;
  padding-top: 0;
}

.speaker-card .speaker-info {
  padding: 1.5rem;
  color: var(--text-dark);
}

.speaker-card .speaker-name {
  color: var(--emerald);
  font-size: 1.2rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.speaker-card .speaker-title {
  font-size: 1rem;
  margin-bottom: 1rem;
}

.speaker-card .speaker-bio {
  font-size: 0.95rem;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .speaker-image {
    height: 280px;
  }
}

/* お問い合わせセクション */
.contact-section {
  background: var(--emerald);
  text-align: center;
  padding: 4rem 0;
  margin-top: 4rem;
}

.contact-section.no-margin-top {
  margin-top: 0;
}

.contact-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.contact-section .section-title,
.contact-section p,
.contact-section a {
  color: var(--text-dark);
}

.contact-section .section-title {
  margin-bottom: 2rem;
}

.contact-section p {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.contact-section a {
  text-decoration: underline;
}

.contact-section a:hover {
  opacity: 0.8;
}

@media (max-width: 768px) {
  .speaker-card {
    max-width: 100%;
  }

  .contact-container {
    padding: 0 1rem;
  }
  .contact-section p {
    font-size: 1.0rem;
  }
}

/* 共同宣言セクション */
.declaration-section {
  background-color: var(--white);
  border-radius: 8px;
  padding: 2rem;
  margin-top: 2rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.declaration-description {
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.declaration-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.declaration-item {
  flex: 1 1 calc(25% - 1rem);
  min-width: 120px;
  background-color: var(--gray-light);
  border-radius: 4px;
  padding: 0.75rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-dark);
}
@media screen and (max-width: 768px) {
  .declaration-list {
    flex-direction: column;
  }
  .declaration-item {
    width: 100%;
  }
}

/* 来場者特典セクション */
.benefits-section {
  max-width: 900px;
  margin: 3rem auto; /* 上下余白と中央揃え */
  background: rgba(0, 184, 184, 0.1);
  padding: 2rem;
  border-radius: 8px;
  display: flex;
  gap: 2rem;
  align-items: center;
}

.benefits-image {
  flex: 0 0 200px;
  width: 200px;
  height: 200px;
  object-fit: cover;
}

.benefits-content {
  color: var(--white);
}

.benefits-title {
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 2rem;
  text-align: left;
  color: var(--white);
}

.benefits-list {
  list-style: none;
  padding-left: 0;
}

.benefits-list li {
  margin-bottom: 1rem;
  position: relative;
  font-size: 1.1rem;
  padding-left: 1.5rem;
}

.benefits-list li::before {
  content: "・";
  position: absolute;
  display: block;
  color: var(--emerald);
  font-size: 1rem;
  width: 1rem;
  height: 1rem;
  left: 0;
}
.btn-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 30px;
}
.btn-benefits {
  font-size: 1.2rem;
  font-weight: bold;
  position: relative;
  display: inline-block;
  padding: 0.75rem 1rem;
  width: 100%;
  max-width: 420px;
  text-align: center;
  text-decoration: none;
  color: #1A2B3C;
  background: #FFE347;
  border-radius: 100px;
  white-space: nowrap;
  margin-top: 30px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}
.btn-benefits:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  background: #FFD700;
}
.btn-benefits img {
  height: 22px;
  padding-right: 5px;
  vertical-align: middle;
}
.benefits-section .note {
  font-size: 0.875rem;
  margin-top: 15px;
  text-align: center;
}
@media screen and (max-width: 768px) {
  .btn-benefits {
    font-size: 1.0rem;
  }
}

/* コンタクトセクション */
.contact-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.contact-section p.sponsor {
  font-size: 0.9375rem;
  margin-bottom: 2rem;
}
.contact-section p.sponsor span {
  display: block;
  font-weight: bold;
  line-height: 1.3;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.contact-section address {
  font-style: normal;
  margin-bottom: 1rem;
}

/* フローティングCTAのスタイル */
.floating-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: #FFE347;
  z-index: 999;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.floating-button {
  display: block;
  width: 100%;
  padding: 1.2rem 1rem;
  color: #1A2B3C;
  text-align: center;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  position: relative;
  border-radius: 0;
}

.button-arrow {
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: bold;
}

/* スマホ表示時のみ表示 */
@media screen and (max-width: 768px) {
  .floating-cta {
    display: block;
  }
  
  /* 下部に余白を追加してフローティングボタンと重なるのを防ぐ */
  body {
    padding-bottom: 56px;
  }
}

  
@media (min-width: 968px) {
  .program-items-wrapper {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-container {
    padding: 0 1rem;
  }

  .hero-section {
    background-position: 10% 20%;
    background-size: 140% auto;
  }

  .nav-right {
    display: none;
    position: fixed;
    top: 60px;
    right: 0;
    background: rgba(10,26,47, 0.95);
    padding: 1rem 2rem;
    width: 100%;
    max-width: 500px;
  }

  .nav-right ul {
    flex-direction: column;
    gap: 1rem;
  }

  .benefits-section {
    padding: 2rem 1rem 1rem;
  }
  .benefits-title {
    font-size: 1.5rem;
    text-align: center;
  }

  .benefits-list {
    text-align: left;
  }
  .benefits-list li {
    font-size: 1rem;
  }
  .benefits-list li::before {
    margin-right: 0.25rem;
  }

  .hamburger {
    display: block;
  }

  .hamburger.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  .nav-right.open {
    display: block;
  }

  .contact-section p.sponsor {
    padding: 0 20px;
  }
}

/* アーカイブリンクセクション */
.archive-links-section {
  text-align: center;
  background: var(--gray-light);
  padding: 3rem 2rem;
  max-width: 100%;
  margin-bottom: 0;
}

.archive-links-grid {
  display: flex;
  gap: 3rem;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 900px;
  margin: 0 auto;
}

.archive-link-item {
  flex: 1 1 300px;
  max-width: 400px;
}

.archive-link-item a {
  display: block;
  text-decoration: none;
  color: var(--text-dark);
  transition: opacity 0.3s ease;
}

.archive-link-item a:hover {
  opacity: 0.8;
}

.archive-thumbnail {
  width: 100%;
  height: auto;
  display: block;
}

.archive-video-text {
  margin-top: 0.5rem;
  font-size: 1rem;
  font-weight: bold;
  color: var(--text-dark);
}

@media (max-width: 768px) {
  .archive-links-grid {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .archive-link-item {
    max-width: 100%;
    flex: none;
  }
}