/* =========================================
   AI活用EXPO 2025 — Stylesheet
   Design: Clean Business / White-base / Blue
   Sharp corners, no hover shadows/outlines
   ========================================= */

/* ---------- DIN FONT ---------- */
@font-face {
  font-family: 'D-DINCondensed';
  src: url('fonts/D-DINCondensed.otf') format('opentype');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'D-DINCondensed';
  src: url('fonts/D-DINCondensed-Bold.otf') format('opentype');
  font-weight: 700; font-style: normal; font-display: swap;
}

/* ---------- RESET & BASE ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --blue-900: #1e3a5f;
  --blue-800: #1a3f7a;
  --blue-700: #1d4ed8;
  --blue-600: #1d63c4;
  --blue-500: #2563eb;
  --blue-400: #3b82f6;
  --blue-300: #93c5fd;
  --blue-100: #dbeafe;
  --blue-50:  #eff6ff;

  --white:    #ffffff;
  --gray-50:  #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  --green-100: #dcfce7;
  --green-700: #15803d;

  --font-jp: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-en: 'Inter', system-ui, sans-serif;

  --container: 1200px;
  --section-v: 96px;
}

html {
  font-family: var(--font-jp);
  font-size: 16px;
  color: var(--gray-900);
  background: #edf0f5;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden; /* 横スクロール防止 */
}
body {
  overflow-x: hidden; /* 横スクロール防止（安全網） */
  line-height: 1.7;
  padding-top: 108px; /* fixed header: topbar36 + nav72 */
}
@media (max-width: 960px) {
  body { padding-top: 72px; } /* topbar非表示のためnav72のみ */
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }


/* ---------- CONTAINER ---------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 48px;
}
@media (max-width: 1024px) { .container { padding: 0 32px; } }
@media (max-width: 640px)  { .container { padding: 0 20px; } }


/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-jp);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.btn-sm  { font-size: 13px; padding: 9px 20px; }
.btn-lg  { font-size: 15px; padding: 15px 32px; }
.btn-full { width: 100%; }

.btn-primary {
  background: var(--blue-600);
  color: var(--white);
}
.btn-primary:hover { background: var(--blue-700); }

.btn-outline {
  background: transparent;
  color: var(--blue-600);
  border: 1.5px solid var(--blue-300);
}
.btn-outline:hover { background: var(--blue-50); }

.btn-white {
  background: var(--white);
  color: var(--blue-700);
  font-weight: 700;
}
.btn-white:hover { background: var(--blue-50); }

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.45);
}
.btn-outline-white:hover { background: rgba(255,255,255,0.1); }


/* ---------- NAVIGATION ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1100;
  background: #0b1628;
  transition: box-shadow 0.25s;
}
.nav.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.45); }

/* 情報バー: 日時・会場 */
.nav-topbar {
  background: #060d1a;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-topbar-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 36px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 48px;
  font-size: 12px;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.02em;
}
.nav-topbar-divider { opacity: 0.3; }
.nav-topbar-map {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  border: 1px solid rgba(255,255,255,0.4);
  padding: 3px 10px;
  transition: background 0.15s, border-color 0.15s;
}
.nav-topbar-map:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.7);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  /* nav はコンテンツ幅より広く取って詰め込み防止。メインコンテンツ(--container:1200px)とは別管理 */
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 48px;
}

.nav-logo { text-decoration: none; display: flex; align-items: center; flex-shrink: 0; }
.nav-logo-img {
  height: 50px;
  width: auto;
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0;
  margin: 0;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.62);
  white-space: nowrap;
  transition: color 0.15s;
}
.nav-links a:hover,
.nav-links a.active { color: #fff; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: rgba(255,255,255,0.75);
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 無料来場登録ボタン (高視認) */
.btn-register {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-jp);
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
  letter-spacing: 0.03em;
  padding: 10px 24px;
  border-radius: 9999px;
  background: linear-gradient(135deg, #1a3f7a 0%, #1d63c4 50%, #2563eb 100%);
  color: #fff;
  border: 2px solid rgba(255,255,255,0.85);
  position: relative;
  overflow: hidden;
  transition: opacity 0.15s;
}
.btn-register:hover { opacity: 0.88; }

.btn-exhibitor {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-jp);
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
  letter-spacing: 0.03em;
  padding: 10px 24px;
  border-radius: 9999px;
  background: linear-gradient(135deg, #d97706 0%, #f59e0b 100%);
  color: #fff;
  border: 2px solid rgba(255,255,255,0.85);
  text-decoration: none;
  transition: opacity 0.15s;
}
.btn-exhibitor:hover { opacity: 0.88; }

/* ---------- MOBILE MENU: Full-screen overlay ---------- */
@keyframes mmSlideIn {
  from { opacity: 0; transform: translateX(52px); }
  to   { opacity: 1; transform: translateX(0); }
}

.mobile-menu {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 1090;
  background: linear-gradient(160deg, #040b18 0%, #0b1628 55%, #071020 100%);
  transform: translateX(100%);
  transition: transform 0.42s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}
.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu-inner {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 100px 40px 52px;
}

/* ロゴ */
.mobile-menu-head {
  margin-bottom: 44px;
}
.mobile-menu.open .mobile-menu-head {
  animation: mmSlideIn 0.38s 0.10s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}
.mobile-menu-logo {
  height: 40px;
  width: auto;
}

/* ナビリンク */
.mobile-menu-nav ul {
  list-style: none;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mobile-menu-nav li {
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mobile-menu-nav a {
  display: block;
  padding: 20px 0;
  font-size: 20px;
  font-weight: 700;
  color: rgba(255,255,255,0.70);
  letter-spacing: 0.02em;
  transition: color 0.15s;
}
.mobile-menu-nav a:hover { color: #fff; }

/* 各リンクのスタガーアニメーション */
.mobile-menu.open .mobile-menu-nav li {
  animation: mmSlideIn 0.38s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}
.mobile-menu.open .mobile-menu-nav li:nth-child(1) { animation-delay: 0.18s; }
.mobile-menu.open .mobile-menu-nav li:nth-child(2) { animation-delay: 0.24s; }
.mobile-menu.open .mobile-menu-nav li:nth-child(3) { animation-delay: 0.30s; }
.mobile-menu.open .mobile-menu-nav li:nth-child(4) { animation-delay: 0.36s; }
.mobile-menu.open .mobile-menu-nav li:nth-child(5) { animation-delay: 0.42s; }
.mobile-menu.open .mobile-menu-nav li:nth-child(6) { animation-delay: 0.48s; }

/* CTAボタン */
.mobile-menu-cta {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.mobile-menu.open .mobile-menu-cta {
  animation: mmSlideIn 0.38s 0.54s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}
.mobile-menu-cta .btn-register,
.mobile-menu-cta .btn-exhibitor {
  width: 100%;
  padding: 16px 24px;
  font-size: 16px;
  justify-content: center;
}
.mobile-menu-x-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 24px;
  background: #1a1a1a;
  border: 1.5px solid rgba(255,255,255,0.2);
  color: white;
  font-family: var(--font-jp);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: background 0.15s;
}
.mobile-menu-x-btn:hover { background: #2a2a2a; }

/* フッター情報 */
.mobile-menu-footer {
  margin-top: auto;
  padding-top: 48px;
}
.mobile-menu.open .mobile-menu-footer {
  animation: mmSlideIn 0.38s 0.60s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}
.mobile-menu-footer p {
  font-size: 12px;
  color: rgba(255,255,255,0.28);
  line-height: 1.9;
  letter-spacing: 0.06em;
}
.mobile-menu-x-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  margin-bottom: 14px;
  transition: color 0.15s;
}
.mobile-menu-x-link:hover { color: white; }

/* 1280px 以下: パディング縮小 */
@media (max-width: 1280px) {
  .nav-inner { padding: 0 24px; }
  .nav-menu  { gap: 20px; }
  .nav-links { gap: 18px; }
}
/* 1100px 以下: テキスト・ボタン縮小 */
@media (max-width: 1100px) {
  .nav-links { gap: 12px; }
  .nav-links a { font-size: 13px; }
  .nav-menu  { gap: 12px; }
  .btn-register,
  .btn-exhibitor { padding: 8px 14px; font-size: 12px; }
}
/*
 * 段階的リンク非表示 — 二度と折り返さないための安全網
 * モバイルメニュー側には影響しない (.nav-links li のみ対象)
 * ─────────────────────────────────────────────────────────────────
 * nav-inner は max-width:1440px なのでコンテンツ幅 = viewport - 96px (≤1440px 時)
 *
 * 根本原因: ロゴ(224px) + 6リンク+2btn(≈877px) = 1101px
 *   > 1280px: nav-inner は max-width:1440px で viewport幅 - 96px を使える
 *     → 1281px で 1185px 確保 → 余裕 84px ✓
 *   ≤ 1280px: padding 24px に縮小されるが、gap/font 縮小が 1100px まで起きない帯域あり
 *     → FAQ(優先度低)を 1280px 以下で非表示にして安全マージンを確保
 *   ≤ 1100px: font/gap 縮小が適用される
 *     → イベントについて を非表示にして 4リンク体制で確実に収める
 *
 * 帯域 / リンク数 / 最大コンテンツ幅 / 利用可能幅:
 *   > 1280px  : 6リンク  : 1101px  :  viewport - 96px (≥1185px) ✓
 *   961-1280px: 5リンク  : ~850px  :  viewport - 48px (~1040px+) ✓
 *   961-1100px: 4リンク  : ~680px  :  viewport - 48px (~913px+)  ✓
 */
@media (max-width: 1280px) {
  /* FAQ: ≤1280px では非表示 (最優先度低) */
  .nav-links .nav-hide-md { display: none; }
}
@media (max-width: 1100px) {
  /* イベントについて: font/gap 縮小が入る帯域でも余裕を確保 */
  .nav-links .nav-hide-sm { display: none; }
}
/* 960px 以下: ハンバーガーに切り替え */
@media (max-width: 960px) {
  .nav-menu { display: none; }
  .nav-hamburger { display: flex; }
  .nav-inner { padding: 0 20px; }
  .nav-topbar { display: none; }
}


/* ---------- HERO ---------- */
.hero {
  position: relative;
  height: 600px;
  min-height: 480px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* 背景動画 */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* 暗いオーバーレイ: 白文字の視認性確保 */
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(5, 15, 35, 0.85);
}

/* 中央エリア: ロゴ + CTAボタン */
.hero-center {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  padding: 32px 24px 0;
}

.hero-logo {
  width: min(620px, 85vw);
}
.hero-logo img {
  width: 100%;
  height: auto;
  display: block;
}

/* グラデーションCTAボタン */
.hero-cta-btn {
  display: flex;
  align-items: center;
  width: min(540px, 88vw);
  height: 80px;
  background: linear-gradient(99.64deg, #53D4FF 0%, #4B48FF 100%);
  box-shadow: 0 4px 4px rgba(0, 0, 0, 0.25);
  text-decoration: none;
  overflow: hidden;
  flex-shrink: 0;
  transition: opacity 0.15s;
}
.hero-cta-btn:hover { opacity: 0.92; }

.hero-exhibitor-btn {
  display: flex;
  align-items: center;
  width: min(540px, 88vw);
  height: 80px;
  margin-top: 14px;
  background: linear-gradient(135deg, #d97706 0%, #f59e0b 100%);
  box-shadow: 0 4px 4px rgba(0, 0, 0, 0.25);
  text-decoration: none;
  overflow: hidden;
  flex-shrink: 0;
  transition: opacity 0.15s;
}
.hero-exhibitor-btn:hover { opacity: 0.92; }
.hero-exhibitor-btn .hero-cta-text { padding-left: 24px; }

.hero-cta-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 120px;
  height: 48px;
  background: white;
  margin-left: 24px;
  color: #4c57ff;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.hero-cta-text {
  flex: 1;
  text-align: center;
  color: white;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.016em;
}

.hero-cta-icon {
  margin-right: 22px;
  flex-shrink: 0;
}

/* 下部バー: 左=タグライン・会場、右=日付 */
.hero-bottom {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: stretch; /* 両列を同じ高さに揃える */
  padding: 0 58px 50px;
  color: white;
}

/* 左列: タグラインを上端・会場行を下端に配置 */
.hero-bottom-left {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-tagline {
  font-size: clamp(20px, 2.8vw, 40px);
  font-weight: 500;
  color: white;
  margin: 0;
  line-height: 1.2;
  white-space: nowrap;
}

.hero-venue-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-venue-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid white;
  width: 88px;
  height: 36px;
  font-size: 16px;
  color: white;
  flex-shrink: 0;
}

.hero-venue-text {
  font-size: clamp(14px, 1.5vw, 21px);
  font-weight: 700;
  color: white;
}

/* 右列: 日付+時刻列を中央配置 */
.hero-bottom-right {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  text-align: right;
  flex-shrink: 0;
}

.hero-date-row-new {
  display: flex;
  align-items: baseline;
  font-family: var(--font-en);
  color: white;
  line-height: 1.19;
}

.hero-date-y {
  font-size: clamp(32px, 4.4vw, 63px);
  font-weight: 600;
}

.hero-date-s {
  font-size: clamp(20px, 2.6vw, 38px);
  font-weight: 400;
  padding: 0 8px;
}

.hero-date-d {
  font-size: clamp(32px, 4.4vw, 63px);
  font-weight: 600;
}

.hero-date-d small {
  font-size: clamp(16px, 2.2vw, 32px);
  font-weight: 600;
}

.hero-date-tilde {
  font-size: clamp(32px, 4.4vw, 63px);
  font-weight: 600;
  padding: 0 4px;
}

.hero-date-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.hero-time {
  font-family: var(--font-en);
  font-size: clamp(12px, 1.4vw, 20px);
  color: white;
  letter-spacing: -0.022em;
}

/* ===== モバイル対応 ===== */
@media (max-width: 720px) {
  .hero {
    height: auto;
    min-height: 540px;
  }

  .hero-center {
    padding-top: 40px;
    gap: 20px;
  }

  .hero-cta-btn,
  .hero-exhibitor-btn {
    height: 64px;
  }
  .hero-exhibitor-btn { margin-top: 0; }

  .hero-cta-badge {
    width: 72px;
    height: 36px;
    font-size: 15px;
    margin-left: 14px;
  }

  .hero-cta-text {
    font-size: 16px;
  }

  .hero-cta-icon {
    margin-right: 14px;
  }

  .hero-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 24px 20px 32px;
  }

  .hero-bottom-left {
    justify-content: flex-start;
    gap: 12px;
  }

  .hero-bottom-right {
    align-items: flex-start;
    text-align: left;
    gap: 6px;
  }

  .hero-date-col {
    align-items: flex-start;
  }

  .hero-tagline {
    font-size: min(4.2vw, 20px);
  }
}


/* ---------- PICKUP ---------- */
.pickup-section {
  background: #ffffff;
  padding: 28px 0;
}
.pickup-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.pickup-label {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: #94a3b8;
  text-transform: uppercase;
  flex-shrink: 0;
}
.pickup-banners {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  flex: 1;
}
.pickup-banner {
  flex-shrink: 0;
  border-radius: 8px;
  overflow: hidden;
  transition: opacity 0.15s;
}
.pickup-banner:hover {
  opacity: 0.85;
}
.pickup-banner img {
  height: 80px;
  width: auto;
  display: block;
}
@media (max-width: 720px) {
  .pickup-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .pickup-banner img {
    height: auto;
    width: 100%;
    max-width: 400px;
  }
}

/* ---------- LOGO MARQUEE (2行) ---------- */
.logo-marquee-section {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  overflow: hidden;
}

.logo-marquee-wrap {
  overflow: hidden;
  position: relative;
  border-top: 1px solid var(--gray-200);
  mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 6%,
    black 94%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 6%,
    black 94%,
    transparent 100%
  );
}

.logo-track {
  display: flex;
  align-items: center;
  width: max-content;
}

.logo-track-forward {
  animation: marquee-fwd 45s linear infinite;
}
.logo-track-reverse {
  animation: marquee-rev 50s linear infinite;
}


.logo-item {
  flex-shrink: 0;
  width: 148px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-right: 1px solid var(--gray-200);
}

.logo-item img {
  max-height: 36px;
  max-width: 108px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(40%) opacity(0.6);
  transition: filter 0.2s;
}
.logo-item:hover img {
  filter: grayscale(0%) opacity(1);
}

@keyframes marquee-fwd {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@keyframes marquee-rev {
  from { transform: translateX(-50%); }
  to   { transform: translateX(0); }
}

@media (prefers-reduced-motion: reduce) {
  .logo-track-forward,
  .logo-track-reverse { animation: none; }
}


/* ---------- SECTION COMMON ---------- */
.section { padding: var(--section-v) 0; background: #ffffff; }
.section-gray { background: #edf0f5; }
.section-blue { background: var(--blue-50); }

/* ---- スラッシュあしらい ---- */
.section-slash {
  position: relative;
  overflow: hidden;
  isolation: isolate; /* 新しい重ね合わせコンテキスト: ::before/after を最下層に */
}
/* 左側帯: コンテンツより下のレイヤー */
.section-slash::before {
  content: '';
  position: absolute;
  left: -130px;
  top: 50%;
  width: 240px;
  height: 220%;
  background: linear-gradient(135deg, var(--blue-700) 0%, var(--blue-500) 100%);
  opacity: 1;
  transform: translateY(-50%) rotate(4deg);
  pointer-events: none;
  z-index: -1;
}
/* 右側帯 */
.section-slash::after {
  content: '';
  position: absolute;
  right: -130px;
  top: 50%;
  width: 240px;
  height: 220%;
  background: linear-gradient(135deg, var(--blue-700) 0%, var(--blue-500) 100%);
  opacity: 1;
  transform: translateY(-50%) rotate(4deg);
  pointer-events: none;
  z-index: -1;
}

/* ---- セクションヘッダー ---- */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

/* タイトル行: left-deco | h2のみ | right-deco */
.section-heading-row {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 20px;
}
/* h2 を直接 flex アイテムとして配置 */
.section-heading-row .section-title {
  flex-shrink: 0;
}

/* 左右のデコレーションコンテナ */
.heading-deco {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
  overflow: hidden;
}

/* フェードライン (flex child として伸びる) */
.heading-deco-left::before {
  content: '';
  flex: 1;
  min-width: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--blue-600));
  align-self: center;
}
.heading-deco-right::after {
  content: '';
  flex: 1;
  min-width: 0;
  height: 1px;
  background: linear-gradient(to left, transparent, var(--blue-600));
  align-self: center;
}

/* チェブロン（矢印型）各スパン共通 */
.heading-deco span {
  display: block;
  flex-shrink: 0;
  background: var(--blue-600);
}

/* 左デコ: 右向き ► — タイトルに近いほど大きく・濃く */
.heading-deco-left span {
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 50%, calc(100% - 6px) 100%, 0 100%);
}
.heading-deco-left span:nth-child(1) { width: 10px; height: 14px; opacity: 0.15; }
.heading-deco-left span:nth-child(2) { width: 12px; height: 18px; opacity: 0.45; }
.heading-deco-left span:nth-child(3) { width: 15px; height: 23px; opacity: 0.82; }

/* 右デコ: 左向き ◄ — タイトルに近いほど大きく・濃く */
.heading-deco-right span {
  clip-path: polygon(6px 0, 100% 0, 100% 100%, 6px 100%, 0 50%);
}
.heading-deco-right span:nth-child(1) { width: 15px; height: 23px; opacity: 0.82; }
.heading-deco-right span:nth-child(2) { width: 12px; height: 18px; opacity: 0.45; }
.heading-deco-right span:nth-child(3) { width: 10px; height: 14px; opacity: 0.15; }

/* モバイル: デコ非表示 */
@media (max-width: 768px) {
  .section-heading-row { flex-direction: column; gap: 0; }
  .heading-deco { display: none; }
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--blue-600);
  margin-bottom: 10px;
}

.section-title {
  font-size: 34px;
  font-weight: 800;
  color: var(--gray-900);
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.section-desc {
  font-size: 16px;
  color: var(--gray-500);
  line-height: 1.85;
  margin-top: 16px;
}

.section-action {
  text-align: center;
  margin-top: 56px;
}

.section-title-left {
  font-size: 30px;
  font-weight: 800;
  color: var(--gray-900);
  letter-spacing: -0.025em;
  line-height: 1.35;
  margin-top: 12px;
  margin-bottom: 20px;
}


/* ---------- ABOUT ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.about-photos {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0; /* グリッドアイテムが収縮できるよう */
}

.about-photo-main {
  overflow: hidden;
  aspect-ratio: 16/9;
}
.about-photo-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.about-photo-sub {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.about-photo-sub > * {
  overflow: hidden;
  aspect-ratio: 4/3;
}
.about-photo-sub img {
  width: 100%;
  height: auto; /* aspect-ratio との循環依存を防ぐ */
  object-fit: cover;
  display: block;
}

.about-body { min-width: 0; } /* グリッドアイテムが収縮できるよう */

.about-lead {
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 900;
  color: var(--gray-900);
  line-height: 1.35;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.about-text {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.9;
  margin-bottom: 12px;
}

.about-points {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--gray-200);
}

.about-point {
  display: flex;
  gap: 20px;
  align-items: center;
  background: #fff;
  padding: 18px 20px;
  border: 1px solid var(--gray-200);
}

/* バッジ（背景なし：矢印＋Point XX） */
.about-point-badge {
  flex-shrink: 0;
  width: 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.about-point-arrow {
  display: block;
  width: 64px;
  height: 40px;
}

.about-point-num {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  color: var(--blue-600);
  width: 64px;
  text-align: center;
}

/* コンテンツ右側 */
.about-point-content {
  flex: 1;
  min-width: 0; /* フレックスアイテムが内容幅より細く収縮できるよう */
}

.about-point-title {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 4px;
  background: linear-gradient(95deg, #0f2d6b 0%, var(--blue-600) 55%, var(--blue-500) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.about-point p {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.7;
}

/* フォトギャラリー帯 */
.about-gallery {
  display: flex;
  gap: 0;
  overflow: hidden;
  height: 220px;
}
.about-gallery img {
  flex: 1;
  width: 0;
  min-width: 0;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: flex 0.4s ease;
}
.about-gallery img:hover { flex: 2; }

@media (max-width: 960px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-gallery { height: 160px; }
}
@media (max-width: 640px) { .about-gallery { display: none; } }


/* ---------- LAST YEAR ---------- */

/* フォトモザイク */
/* ===== LAST YEAR (再設計) ===== */
.section-lastyear {
  background: linear-gradient(150deg,
    #040b18 0%,
    #0c1d48 28%,
    #152e62 52%,
    #0b2040 76%,
    #040912 100%);
  padding-bottom: 88px;
}

/* ダーク背景上のセクションヘッダー色 */
.section-lastyear .section-title { color: #fff; }
.section-lastyear .eyebrow { color: var(--blue-300); }
.section-lastyear .heading-deco span { background: rgba(255,255,255,0.35); }
.section-lastyear .heading-deco-left::before {
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.18));
}
.section-lastyear .heading-deco-right::after {
  background: linear-gradient(to left, transparent, rgba(255,255,255,0.18));
}

/* 白カード共通 */
.lastyear-card,
.rebrand-card {
  background: #fff;
  margin-top: 48px;
  box-shadow: 0 16px 56px rgba(0,0,0,0.45);
}

/* ギャラリーカード */
.lastyear-card {
  padding: 24px;
}
.lastyear-gallery {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1fr;
  grid-template-rows: 210px 190px;
  gap: 8px;
}
.lastyear-gallery-item {
  overflow: hidden;
}
.lastyear-gallery-main {
  grid-row: 1 / 3;
}
.lastyear-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 実績数値 (グラデーション上に直接) */
.lastyear-stats {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-top: 48px;
}
.lastyear-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 16px 28px;
  text-align: center;
  gap: 4px;
}
.stat-laurel-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.stat-laurel-img {
  height: clamp(52px, 6vw, 73px);
  width: auto;
  flex-shrink: 0;
}
.lastyear-stat-num {
  font-family: var(--font-en);
  font-size: clamp(40px, 5.5vw, 61px);
  font-weight: 900;
  color: #fff;
  line-height: 1;
  letter-spacing: -0.04em;
}
.lastyear-stat-unit {
  font-size: 0.32em;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.lastyear-stat-label {
  font-size: 14px;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  letter-spacing: 0.08em;
  margin-top: 16px;
  margin-bottom: 2px;
}

/* リブランドカード */
.rebrand-card {
  overflow: hidden;
}

/* リブランドカード: ヘッダー (白) */
.rebrand-card-header {
  padding: 52px 64px 44px;
  text-align: center;
  background: #fff;
}
.rebrand-card-header .eyebrow { color: var(--blue-600); }
.rebrand-heading {
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 900;
  color: var(--gray-900);
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin-top: 12px;
}

/* リブランドカード: ロゴ from → to (ダークストリップ) */
.rebrand-logo-strip {
  background: linear-gradient(90deg, #040b18 0%, #0e2250 50%, #040b18 100%);
  padding: 52px 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
}
.rebrand-logo-from,
.rebrand-logo-to {
  text-align: center;
  flex: 0 0 auto;
}
.rebrand-logo-year {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 20px;
  color: rgba(255,255,255,0.3);
}
.rebrand-logo-year--new { color: var(--blue-300); }
.rebrand-logo-imgwrap {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 72px;
}
.rebrand-logo-from .rebrand-logo-imgwrap img {
  max-height: 72px;
  width: auto;
}
.rebrand-logo-to .rebrand-logo-imgwrap img {
  max-height: 52px;
  width: auto;
}
.rebrand-logo-desc {
  font-size: 12px;
  letter-spacing: 0.04em;
  margin-top: 20px;
  color: rgba(255,255,255,0.3);
}
.rebrand-logo-desc--new { color: var(--blue-300); }

/* 矢印 (チェブロン × 3) */
.rebrand-arrow-wrap {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}
.rebrand-arrow-wrap span {
  display: block;
  background: var(--blue-500);
  clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 50%, calc(100% - 7px) 100%, 0 100%);
}
.rebrand-arrow-wrap span:nth-child(1) { width: 14px; height: 20px; opacity: 0.25; }
.rebrand-arrow-wrap span:nth-child(2) { width: 18px; height: 26px; opacity: 0.6; }
.rebrand-arrow-wrap span:nth-child(3) { width: 22px; height: 32px; opacity: 1; }

/* リブランドカード: メッセージ (白) */
.rebrand-card-message {
  padding: 52px 64px 60px;
  background: #fff;
  text-align: center;
}
.rebrand-card-message > * {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.rebrand-card-message p {
  font-size: 15.5px;
  color: var(--gray-500);
  line-height: 1.95;
  margin-bottom: 24px;
}
.rebrand-declaration {
  font-size: clamp(20px, 2.8vw, 28px) !important;
  font-weight: 800 !important;
  color: var(--gray-900) !important;
  letter-spacing: -0.02em;
  margin: 32px auto !important;
  line-height: 1.4 !important;
}

@media (max-width: 960px) {
  .lastyear-gallery {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 180px 180px 180px;
  }
  .lastyear-gallery-main { grid-row: auto; }
  .lastyear-stats { grid-template-columns: repeat(3, 1fr); }
  .lastyear-stat { padding: 24px 8px; gap: 8px; }
  .stat-laurel-img { height: 52px; }
  .rebrand-card-header { padding: 40px 32px 32px; }
  .rebrand-logo-strip { padding: 40px 32px; gap: 28px; }
  .rebrand-card-message { padding: 40px 32px 48px; }
}
@media (max-width: 640px) {
  .lastyear-card { padding: 12px; }
  .lastyear-gallery { grid-template-columns: 1fr 1fr; grid-template-rows: 140px 140px 140px; }
  .lastyear-stats { grid-template-columns: 1fr; }
  .lastyear-stat { padding: 16px 16px; }
  .stat-laurel-img { height: 56px; }
  .rebrand-logo-strip { flex-direction: column; gap: 24px; }
  .rebrand-arrow-wrap { transform: rotate(90deg); }
}


/* ---------- CONFERENCE ---------- */
.conf-day-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--blue-600);
}
.conf-day-label {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 900;
  color: var(--blue-600);
  letter-spacing: 0.04em;
}
.conf-day-date {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-600);
}
.conf-day-time {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-500);
  letter-spacing: -0.01em;
}

.conf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

/* 過去の登壇者スライド（確認中のため一時非表示 → display:none を外すだけで復元可能） */
.past-speakers {
  margin-top: 32px;
  display: none;
}
.past-speakers-title {
  text-align: center;
  font-size: 16px;
  font-weight: 600;
  color: #1e293b;
  margin: 0 0 20px;
}
.past-speakers-track {
  overflow: hidden;
  width: 100%;
}
.past-speakers-slide {
  display: flex;
  gap: 20px;
  animation: speakerScroll 40s linear infinite;
  width: max-content;
}
.past-speakers-slide img {
  width: 200px;
  height: auto;
  border-radius: 8px;
  flex-shrink: 0;
}
@keyframes speakerScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.past-speakers-track:hover .past-speakers-slide {
  animation-play-state: paused;
}
.past-speakers-note {
  text-align: center;
  font-size: 13px;
  color: #64748b;
  margin: 20px 0 0;
}
@media (max-width: 720px) {
  .past-speakers-slide img {
    width: 160px;
  }
}

.conf-coming-soon {
  text-align: center;
  padding: 40px 20px;
}
.conf-coming-soon-text {
  font-family: var(--font-en);
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700;
  color: #1d63c4;
  letter-spacing: 0.08em;
  margin: 0 0 8px;
}
.conf-coming-soon-sub {
  font-size: 14px;
  color: #475569;
  margin: 0;
}

.conf-card {
  background: white;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.conf-card-img {
  aspect-ratio: 3840 / 2162;
  overflow: hidden;
  background: var(--gray-100);
  flex-shrink: 0;
}
.conf-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.conf-card-body {
  padding: 16px 14px 14px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.conf-card-meta {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}
.conf-session-time {
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 700;
  color: #0f172a;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.conf-card-capacity {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 700;
  color: #1d63c4;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 4px;
  padding: 2px 8px;
  white-space: nowrap;
}

/* 申し込みボタン — Figmaデザイン準拠: ピル型・solid blue */
.conf-apply-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 56px;
  background: #1d63c4;
  color: white;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.03em;
  border-radius: 28px;
  transition: opacity 0.15s;
  margin-top: auto;
}
.conf-apply-btn:hover { opacity: 0.88; }

@media (max-width: 960px) {
  .conf-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (max-width: 560px) {
  .conf-grid { grid-template-columns: 1fr; gap: 16px; }
}


/* ---------- CONFERENCE CAROUSEL (mobile) ---------- */
/* desktop: controls hidden */
.conf-carousel-ctrl { display: none; }

@media (max-width: 720px) {
  /* カルーセルラップ: ボタンの絶対配置の基準点 */
  .conf-carousel-wrap {
    position: relative;
  }

  /* grid をスクロールトラックに変換 */
  .conf-carousel-wrap > .conf-grid {
    display: flex !important;
    overflow-x: scroll;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .conf-carousel-wrap > .conf-grid::-webkit-scrollbar { display: none; }

  /* 各カードを1枚ずつ表示 */
  .conf-carousel-wrap > .conf-grid > .conf-card {
    flex: 0 0 100%;
    scroll-snap-align: start;
    min-width: 0;
  }

  /* コントロール: カード中央に絶対配置でオーバーレイ */
  .conf-carousel-ctrl {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    pointer-events: none; /* カード自体のクリックを妨げない */
  }

  .conf-carousel-prev-btn,
  .conf-carousel-next-btn {
    pointer-events: auto;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--blue-600);
    color: #fff;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.15s;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  }
  .conf-carousel-prev-btn:hover,
  .conf-carousel-next-btn:hover { background: var(--blue-700); }
  .conf-carousel-prev-btn:disabled,
  .conf-carousel-next-btn:disabled {
    background: rgba(255,255,255,0.85);
    color: var(--gray-300);
    cursor: default;
    box-shadow: none;
  }
  .conf-carousel-prev-btn svg,
  .conf-carousel-next-btn svg { width: 20px; height: 20px; }
}


/* ---------- CATEGORIES ---------- */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 175px));
  justify-content: center;
  gap: 12px;
}
.cat-card {
  background: white;
  border: 1px solid var(--gray-200);
  padding: 22px 12px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  cursor: default;
}
.cat-icon {
  width: 36px;
  height: 36px;
  color: var(--blue-600);
}
.cat-icon svg { width: 100%; height: 100%; }
.cat-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--gray-600);
  text-align: center;
  line-height: 1.4;
}
@media (max-width: 960px) { .cat-grid { grid-template-columns: repeat(4, minmax(0, 175px)); } }
@media (max-width: 640px) { .cat-grid { grid-template-columns: repeat(3, minmax(0, 175px)); } }
@media (max-width: 400px) { .cat-grid { grid-template-columns: repeat(2, minmax(0, 175px)); } }

/* カテゴリー「すべて見る」折りたたみ */
.cat-card.cat-collapsed {
  display: none;
}
@media (min-width: 961px) {
  .cat-card.cat-collapsed {
    display: flex;
  }
}
.cat-show-btn-wrap {
  display: none;
  text-align: center;
  margin-top: 20px;
}
@media (max-width: 960px) {
  .cat-show-btn-wrap { display: block; }
}
.cat-show-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  border: 1.5px solid var(--blue-600);
  color: var(--blue-600);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: transparent;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.cat-show-btn:hover { background: var(--blue-600); color: #fff; }
.cat-show-btn-icon {
  font-style: normal;
  font-size: 16px;
  line-height: 1;
  transition: transform 0.2s;
}
.cat-show-btn.open .cat-show-btn-icon { transform: rotate(180deg); }


/* ---------- INFO / 開催概要 ---------- */
.info-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}

/* グリッドアイテムに min-width: 0 を明示しないと auto (内容幅) になりオーバーフローする */
.info-table-wrap {
  min-width: 0;
  overflow: hidden;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 32px;
}
.info-table tr { border-bottom: 1px solid var(--gray-200); }
.info-table tr:last-child { border-bottom: none; }

.info-table th {
  width: 140px;
  padding: 20px 16px 20px 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--gray-500);
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}
.info-table td {
  padding: 20px 0;
  font-size: 15px;
  color: var(--gray-800);
  line-height: 1.75;
}

.info-address { font-size: 13px; color: var(--gray-600); }
.info-free { color: var(--blue-600); font-weight: 800; }
.info-note { font-size: 13px; color: var(--gray-600); }
.info-mail {
  color: var(--blue-600);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.info-mail:hover { color: var(--blue-700); }

.info-venue-photo {
  overflow: hidden;
  aspect-ratio: 16/7;
}
.info-venue-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.info-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 96px;
  min-width: 0; /* グリッドアイテムのオーバーフロー防止 */
}

.cta-card { padding: 28px; text-align: center; overflow: hidden; }
.cta-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 10px; }
.cta-card p {
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 22px;
  opacity: 0.85;
}

.cta-card-blue { background: var(--blue-600); color: white; }
.cta-card-dark { background: var(--gray-800); color: white; }

/* CTA カード内ボタン: block-level にして width:100% を確実に効かせる */
.cta-card .btn {
  display: flex;
  white-space: normal;
  word-break: keep-all;
  line-height: 1.5;
  padding: 14px 20px;
  font-size: 14px;
  border-radius: 6px;
}
.cta-card-blue .btn-white {
  background: linear-gradient(135deg, #d97706 0%, #f59e0b 100%);
  color: white;
  border: none;
}
.cta-card-blue .btn-white:hover { opacity: 0.88; background: linear-gradient(135deg, #d97706 0%, #f59e0b 100%); }
.cta-card-dark .btn-outline-white {
  background: white;
  color: #111;
  border: none;
  font-weight: 700;
}
.cta-card-dark .btn-outline-white:hover { opacity: 0.88; background: white; }

@media (max-width: 900px) {
  .info-layout { grid-template-columns: 1fr; }
  .info-sidebar { position: static; }
}


/* ---------- ACCESS ---------- */
.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  min-width: 0;
}

.access-map {
  overflow: hidden;
  line-height: 0;
  position: relative;
  max-width: 100%;
}
.access-map iframe {
  width: 100%;
  max-width: 100%;
  height: 440px;
  display: block;
  border: 0;
}

.access-venue-block {
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--gray-200);
}
.access-venue-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--gray-900);
  letter-spacing: -0.02em;
  line-height: 1.45;
  margin-bottom: 10px;
}
.access-address {
  font-size: 13px;
  color: var(--gray-400);
  letter-spacing: 0.02em;
}

.access-routes {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 36px;
}
.access-route {
  padding: 16px 0 16px 20px;
  border-left: 2px solid var(--blue-300);
  border-bottom: 1px solid var(--gray-100);
  margin-bottom: 12px;
}
.access-route:last-child { border-bottom: none; margin-bottom: 0; }
.access-route-type {
  display: block;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--blue-600);
  margin-bottom: 5px;
}
.access-route p {
  font-size: 14.5px;
  color: var(--gray-700);
  line-height: 1.65;
}

.access-gmap-btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--blue-600);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background 0.15s;
}
.access-gmap-btn:hover { background: var(--blue-700); }

@media (max-width: 960px) {
  .access-grid { grid-template-columns: 1fr; gap: 40px; }
  .access-map iframe { height: 320px; }
}
@media (max-width: 480px) {
  .access-map iframe { height: 240px; }
}


/* ---------- FAQ ---------- */
.faq-list {
  max-width: 740px;
  margin: 0 auto;
}
.faq-item { border-bottom: 1px solid var(--gray-200); }

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0;
  text-align: left;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--gray-800);
  transition: color 0.15s;
}
.faq-q:hover { color: var(--blue-600); }

.faq-icon {
  width: 28px;
  height: 28px;
  background: var(--blue-50);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--blue-600);
  font-size: 20px;
  font-weight: 300;
  line-height: 1;
  font-family: var(--font-en);
  transition: transform 0.25s, background 0.2s;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--blue-100);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.open .faq-a {
  max-height: 400px;
  padding-bottom: 22px;
}
.faq-a p {
  font-size: 14.5px;
  color: var(--gray-500);
  line-height: 1.85;
}


/* ---------- HCS: HERO-STYLE CTA SECTION ---------- */
.hcs {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hcs-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 52px 24px;
  color: white;
  width: 100%;
  max-width: 1160px;
}

/* 上段: ロゴ ｜ 縦線 ｜ 日付 */
.hcs-top-row {
  display: flex;
  align-items: center;
  gap: 36px;
}

.hcs-logo img {
  height: 80px;
  width: auto;
  display: block;
}

.hcs-sep {
  width: 1px;
  height: 72px;
  background: rgba(255, 255, 255, 0.55);
  flex-shrink: 0;
}

.hcs-date-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hcs-date-row {
  display: flex;
  align-items: baseline;
  font-family: var(--font-en);
  color: white;
}

.hcs-date-y {
  font-size: clamp(22px, 3.2vw, 46px);
  font-weight: 600;
}

.hcs-date-s {
  font-size: clamp(14px, 1.8vw, 28px);
  font-weight: 400;
  padding: 0 8px;
}

.hcs-date-d {
  font-size: clamp(28px, 4.9vw, 70px);
  font-weight: 600;
  line-height: 1;
}

.hcs-date-d small {
  font-size: clamp(14px, 2.5vw, 36px);
  font-weight: 600;
}

.hcs-date-t {
  font-size: clamp(28px, 4.9vw, 70px);
  font-weight: 600;
  padding: 0 4px;
}

.hcs-date-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0px;
}

.hcs-time {
  font-family: var(--font-en);
  font-size: clamp(11px, 1.3vw, 20px);
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: -0.022em;
}

/* 会場行 */
.hcs-venue-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hcs-venue-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid white;
  width: 72px;
  height: 30px;
  font-size: 14px;
  color: white;
  flex-shrink: 0;
}

.hcs-venue-text {
  font-size: clamp(14px, 1.4vw, 20px);
  font-weight: 700;
  color: white;
}

/* モバイル */
@media (max-width: 720px) {
  .hcs-top-row {
    flex-direction: column;
    gap: 16px;
  }
  .hcs-sep {
    width: 64px;
    height: 1px;
  }
  .hcs-logo img {
    height: 56px;
  }
  .hcs-date-col {
    align-items: center;
  }
  .hcs-venue-row {
    justify-content: center;
  }
}

/* (旧 .cta-banner スタイルは削除) */
.cta-banner-title {
  font-size: 38px;
  font-weight: 900;
  color: white;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}
.cta-banner-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.78);
  line-height: 1.8;
  margin-bottom: 40px;
}
.cta-banner-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
@media (max-width: 640px) { .cta-banner-title { font-size: 28px; } }


/* ---------- X FOLLOW SECTION ---------- */
.x-follow-section {
  background: #000;
  padding: 28px 24px;
}
.x-follow-inner {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
}
.x-follow-icon {
  color: white;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.x-follow-text {
  flex: 1;
}
.x-follow-handle {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 700;
  color: white;
  letter-spacing: -0.01em;
}
.x-follow-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-top: 3px;
  letter-spacing: 0.02em;
}
.x-follow-btn {
  display: inline-flex;
  align-items: center;
  height: 42px;
  padding: 0 24px;
  background: white;
  color: #000;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  flex-shrink: 0;
  transition: background 0.15s, color 0.15s;
}
.x-follow-btn:hover {
  background: rgba(255,255,255,0.85);
}
@media (max-width: 600px) {
  .x-follow-inner {
    flex-wrap: wrap;
    gap: 14px;
  }
  .x-follow-btn {
    width: 100%;
    justify-content: center;
  }
}

/* ---------- TRACK CARDS (同時開催展示会ラインナップ) ---------- */
.tracks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 1024px) { .tracks-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px)  { .tracks-grid { grid-template-columns: 1fr; } }

.track-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s, transform 0.2s;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
}
.track-card:hover {
  box-shadow: 0 8px 32px rgba(29,99,196,0.12);
  transform: translateY(-2px);
}
.track-card-accent {
  display: none;
}
.track-card-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  flex-shrink: 0;
}
.track-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.35s ease;
}
.track-card:hover .track-card-img img { transform: scale(1.04); }

.track-card-head { padding: 20px 24px 0; }
.track-card-num {
  font-family: 'D-DINCondensed', 'Barlow Condensed', 'Arial Narrow', sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--track-color, var(--blue-600));
  letter-spacing: 0.1em;
  line-height: 1;
  display: block;
  margin-bottom: 8px;
}
.track-card-en {
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--track-color, var(--blue-600));
  margin-bottom: 4px;
}
.track-card-ja {
  font-size: 18px;
  font-weight: 900;
  color: var(--gray-900);
  line-height: 1.3;
}
.track-card-body { padding: 16px 24px 0; flex: 1; }
.track-card-desc {
  font-size: 13px;
  color: var(--gray-600);
  line-height: 1.75;
}
.track-card-tags {
  padding: 12px 24px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.track-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--track-color, var(--blue-600));
  background: var(--track-bg, rgba(29,99,196,0.07));
  padding: 3px 10px;
  border-radius: 2px;
}
.track-card-footer {
  padding: 20px 24px 24px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  border-top: 1px solid var(--gray-100);
  margin-top: 20px;
}
.track-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 800;
  color: var(--track-color, var(--blue-600));
  white-space: nowrap;
  transition: gap 0.15s;
}
.track-card-cta:hover { gap: 10px; }
.track-card-cta svg { width: 16px; height: 16px; }


/* ---------- FOOTER ---------- */
.footer {
  background: var(--gray-900);
  padding: 64px 0 40px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 64px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
  margin-bottom: 20px;
}
.footer-logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.footer-desc {
  font-size: 13.5px;
  color: rgba(255,255,255,0.45);
  line-height: 1.85;
  max-width: 320px;
  margin-bottom: 16px;
}
.footer-contact {
  font-size: 13px;
  color: var(--blue-600);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.footer-contact:hover { color: var(--blue-700); }

.footer-social {
  margin-top: 16px;
}
.footer-social-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  transition: color 0.15s;
  text-decoration: none;
}
.footer-social-link:hover { color: white; }

.footer-nav-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.35);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.footer-nav-links { display: flex; flex-direction: column; gap: 12px; }
.footer-nav-links a {
  font-size: 13.5px;
  color: rgba(255,255,255,0.6);
  transition: color 0.15s;
}
.footer-nav-links a:hover { color: white; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-copy,
.footer-org { font-size: 12px; color: rgba(255,255,255,0.3); }

@media (max-width: 840px) {
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}


/* ---------- FLOW ---------- */
.flow-steps {
  display: grid;
  grid-template-columns: 1fr 44px 1fr 44px 1fr 44px 1fr;
  align-items: stretch;
}

.flow-step {
  background: #fff;
  border: 1px solid var(--gray-200);
  padding: 28px 16px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  min-width: 0; /* グリッドアイテムがトラック幅内に収まるよう */
}

.flow-step-num {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: #fff;
  background: var(--blue-600);
  padding: 4px 12px;
  white-space: nowrap;
}

.flow-step-icon {
  width: 52px;
  height: 52px;
  color: var(--blue-600);
  flex-shrink: 0;
}
.flow-step-icon svg { width: 100%; height: 100%; }

.flow-step-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.3;
  word-break: keep-all;
  width: 100%; /* display:contents で直接フレックス子になった場合でも折り返しを強制 */
}

.flow-step-desc {
  font-size: 12px;
  color: var(--gray-500);
  line-height: 1.75;
  word-break: keep-all;
  overflow-wrap: break-word;
  width: 100%; /* 同上: align-items:center 下でも折り返しを強制 */
}

.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-300);
}
.flow-arrow svg { width: 24px; height: 24px; }

.flow-note {
  margin-top: 24px;
  font-size: 12px;
  color: var(--gray-400);
  text-align: center;
}

/* タブレット: 2×2グリッド */
@media (max-width: 1024px) {
  .flow-steps {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .flow-arrow { display: none; }
  .flow-step { padding: 24px 20px 20px; gap: 14px; }
  .flow-step-icon { width: 48px; height: 48px; }
  .flow-step-title { font-size: 16px; }
  .flow-step-desc { font-size: 13px; }
}

/* PC: ラッパーを透過させて flex-column の並びを維持 */
.flow-step-left,
.flow-step-body { display: contents; }

/* SP: 縦リスト（左ボーダーでステップ感を表現） */
@media (max-width: 600px) {
  .flow-steps {
    grid-template-columns: 1fr;
    gap: 0;
    border-left: 3px solid var(--blue-600);
    margin-left: 12px;
  }
  .flow-step {
    flex-direction: row;
    text-align: left;
    align-items: flex-start;
    padding: 18px 16px;
    gap: 16px;
    border-left: none;
    border-bottom: 1px solid var(--gray-200);
  }
  .flow-step:last-child { border-bottom: none; }
  .flow-step-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    width: 52px;
  }
  .flow-step-icon { width: 40px; height: 40px; }
  .flow-step-num  { font-size: 9px; padding: 3px 6px; }
  .flow-step-body { display: block; flex: 1; min-width: 0; padding-top: 4px; }
  .flow-step-title { font-size: 15px; margin-bottom: 4px; }
  .flow-step-desc  { font-size: 13px; }
}


/* ---------- RESPONSIVE TEXT ---------- */
/* 日本語テキストの不自然な改行を防ぐ */
.section-title,
.section-title-left,
.section-desc,
.about-lead,
.about-text,
.about-point p,
.about-point-title,

.faq-q,
.faq-a,
.access-route p,
.cta-banner-desc,
.cta-card p {
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* ---- スラッシュ帯: モバイルでは非表示 ---- */
@media (max-width: 768px) {
  .section-slash::before,
  .section-slash::after { display: none; }
}

@media (max-width: 640px) {
  /* セクション縦余白を縮小 */
  :root { --section-v: 56px; }

  /* セクション見出し縮小 */
  .section-title      { font-size: 22px; }
  .section-title-left { font-size: 20px; }
  .section-desc       { font-size: 14px; }
  .section-header     { margin-bottom: 40px; }

  /* カンファレンス: 日付の途中での折り返しを防ぐ */
  .conf-day-date  { white-space: nowrap; }
  .conf-day-label { font-size: 18px; }
  .conf-day-header { gap: 10px; flex-wrap: wrap; }

  /* アクセス: 会場名を縮小 */
  .access-venue-name { font-size: 18px; }

  /* CTAバナー */
  .cta-banner { padding: 56px 0; }
  .cta-banner-desc { font-size: 14px; }
  .cta-banner-actions { flex-direction: column; align-items: center; }

  /* About: リードテキスト */
  .about-lead { letter-spacing: -0.02em; }

  /* リブランドカード: パディング縮小 */
  .rebrand-card-header  { padding: 28px 20px 24px; }
  .rebrand-logo-strip   { padding: 28px 20px; gap: 20px; }
  .rebrand-card-message { padding: 28px 20px 36px; }

  /* 開催概要テーブル: モバイルでは縦積み */
  .info-table,
  .info-table tbody,
  .info-table tr       { display: block; }
  .info-table th {
    display: block;
    width: auto;
    padding: 16px 0 4px;
    border-bottom: none;
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--blue-600);
  }
  .info-table td {
    display: block;
    padding: 0 0 16px;
    font-size: 14px;
  }
  .info-table tr { border-bottom: 1px solid var(--gray-200); }

  /* About ポイント: 小画面でもフレックス維持、padding縮小 */
  .about-point  { padding: 14px 14px; gap: 14px; }
  .about-points { gap: 12px; }

  /* フロー注記 */
  .flow-note { text-align: left; }

  /* Footer */
  .footer { padding: 48px 0 32px; }
}


/* ---------- 480px以下: 極小スクリーン対応 ---------- */
@media (max-width: 480px) {

  /* ヒーロー: 極小スクリーンで日付・バッジの最小サイズ保証 */
  .hero-date-y, .hero-date-d, .hero-date-tilde { font-size: 28px; }
  .hero-date-s  { font-size: 18px; }
  .hero-date-d small { font-size: 14px; }
  .hero-venue-badge { width: 64px; height: 28px; font-size: 13px; }

  /* カンファレンス: 「全セッション申し込み」ボタンのテキスト折り返し許可 */
  .section-action .btn {
    white-space: normal;
    word-break: keep-all;
    line-height: 1.5;
  }

  /* 去年の実績数値: 極小スクリーン */
  .lastyear-stat { padding: 20px 12px; }
  .stat-laurel-img { height: 48px; }

  /* モバイルメニュー: 極小スクリーンでパディング縮小 */
  .mobile-menu-inner { padding: 90px 20px 40px; }
  .mobile-menu-nav a { font-size: 18px; padding: 16px 0; }

  /* CTA カード: 余白縮小 */
  .cta-card { padding: 20px 16px; }
  .cta-card h3 { font-size: 16px; }
}