/* ===== main.css ===== */
/* JSCMM 2027 - Main Stylesheet - BUILD:20260625C */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; width: 100%; }
body {
  font-family: 'Noto Sans JP', sans-serif;
  background: #fff;
  color: #1C2333;
  font-size: 18px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
 overflow-x: hidden; width: 100%; max-width: 100%; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

:root {
  --ac: #6B1F2A;
  --ac2: #8B2535;
  --gold: #B8963E;
  --gold-light: #F5EED6;
  --dark: #1C2333;
  --mid: #3D4A5C;
  --mute: #6B7A8D;
  --pale: #F8F7F5;
  --border-n: rgba(28,35,51,0.10);
  --max: 1200px;
  --radius: 12px;
  --radius-sm: 8px;
  --nav-h: 72px;
}

/* ── フォーカス可視化：キーボード操作時のみ（マウスでは出さない） ── */
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.nav-dropdown a:focus-visible, .mobile-menu a:focus-visible { outline-offset: -2px; }

/* ── モーション低減の設定を尊重 ── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .pnc:hover { transform: none; }
}

/* ── HEADER ── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 300;
  background: rgba(10,10,15,0.90);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.nav-bar {
  display: flex; align-items: center;
  height: var(--nav-h); padding: 0 48px; gap: 0;
}
.nav-logo { flex-shrink: 0; margin-right: auto; }
.nav-logo .logo-en {
  font-family: 'EB Garamond', serif;
  font-size: 11px; letter-spacing: 0.16em; color: rgba(255,255,255,0.42); text-transform: uppercase;
}
.nav-logo .logo-ja { font-size: 16px; font-weight: 500; color: #fff; line-height: 1.25; }
.nav-main { display: flex; align-items: stretch; gap: 0; list-style: none; flex-wrap: nowrap; }
.nav-item { position: relative; display: flex; align-items: stretch; }
.nav-item > a, .nav-trigger {
  display: flex; align-items: center; gap: 5px;
  font-size: 15px; color: rgba(255,255,255,0.82);
  padding: 0 18px; white-space: nowrap;
  letter-spacing: 0.02em; transition: color .15s;
  background: none; border: none; cursor: pointer; height: 100%;
  font-family: 'Noto Sans JP', sans-serif;
}
.nav-item > a:hover, .nav-trigger:hover { color: var(--gold); }
.nav-item.is-open > .nav-trigger { color: var(--gold); }
.nav-trigger-arrow {
  font-size: 9px; color: rgba(255,255,255,0.38);
  transition: transform .2s, color .15s; display: inline-block;
}
.nav-item.is-open .nav-trigger-arrow { transform: rotate(180deg); color: var(--gold); }
.nav-dropdown {
  position: absolute; top: var(--nav-h); left: 50%;
  transform: translateX(-50%);
  min-width: 230px; opacity: 0; pointer-events: none;
  transition: opacity .18s; z-index: 400;
}
.nav-dropdown.is-open { opacity: 1; pointer-events: auto; }
.nav-dropdown-inner {
  background: rgba(12,12,18,0.97);
  border: 0.5px solid rgba(255,255,255,0.12);
  border-top: 2px solid var(--gold);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 8px 0 16px;
  backdrop-filter: blur(12px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.45);
}
.nav-dropdown a {
  display: block; font-size: 15px; color: rgba(255,255,255,0.75);
  padding: 11px 26px; white-space: nowrap;
  letter-spacing: 0.02em; transition: color .12s, background .12s;
}
.nav-dropdown a:hover { color: var(--gold); background: rgba(255,255,255,0.05); }
.nav-dropdown-label {
  font-size: 10px; letter-spacing: 0.14em; color: var(--gold);
  text-transform: uppercase; padding: 14px 26px 8px;
  border-bottom: 0.5px solid rgba(255,255,255,0.08); margin-bottom: 4px;
}
.nav-right { display: flex; align-items: center; gap: 16px; margin-left: 20px; }
.nav-cta {
  background: var(--ac); color: #fff;
  font-size: 15px; font-weight: 500;
  padding: 10px 24px; border-radius: 22px;
  letter-spacing: 0.02em; transition: background .15s; white-space: nowrap;
}
.nav-cta:hover { background: var(--ac2); }
.nav-gold-line { height: 2px; background: var(--gold); }

/* ── HAMBURGER ── */
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 6px; background: none; border: none;
}
.nav-hamburger span { display: block; width: 26px; height: 2px; background: #fff; border-radius: 2px; transition: all .25s; }
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── MOBILE DRAWER ── */
.mobile-menu {
  display: none !important;
  position: fixed !important;
  top: 0 !important; left: 0 !important; right: 0 !important; bottom: 0 !important;
  z-index: 290;
  background: rgba(8,8,12,0.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 96px 36px 40px;
  flex-direction: column;
  overflow-y: auto;
}
.mobile-menu.open {
  display: flex !important;
}
.mobile-section-label {
  font-size: 11px; letter-spacing: 0.14em; color: var(--gold);
  text-transform: uppercase; margin: 24px 0 8px;
  padding-bottom: 8px; border-bottom: 0.5px solid rgba(255,255,255,0.10);
}
.mobile-section-label:first-child { margin-top: 0; }
.mobile-menu a {
  font-size: 18px; color: rgba(255,255,255,0.82);
  padding: 13px 0; border-bottom: 0.5px solid rgba(255,255,255,0.06);
  letter-spacing: 0.02em; transition: color .15s;
}
.mobile-menu a:hover { color: var(--gold); }
.mobile-cta {
  margin-top: 24px !important; background: var(--ac); color: #fff !important;
  text-align: center; padding: 16px !important; border-radius: var(--radius-sm);
  border-bottom: none !important; font-size: 18px !important; font-weight: 500;
}

/* ── HERO ── */
.hero {
  position: relative; width: 100%;
  margin-top: 74px;
  height: clamp(460px, 52vw, 640px);
  overflow: hidden; background: #16120e;
}
.hero-img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center 15%;
}
.hero picture { display: contents; }
.hero-img-wide { display: block; }
.hero-img-tall { display: none; width: 100%; object-fit: cover; object-position: center 15%; }
.hero-overlay-grad {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(10,10,15,0.30) 0%, rgba(10,10,15,0.02) 28%, rgba(10,10,15,0.0) 50%, rgba(10,10,15,0.68) 100%);
}
.hero-overlay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: flex-start;
  padding-top: clamp(48px, 6vw, 88px);
  text-align: center; padding-left: 24px; padding-right: 24px;
}
.hero-eyebrow {
  display: flex; align-items: center; gap: 14px; margin-bottom: 18px;
}
.hero-eyebrow-line { width: 32px; height: 1px; background: var(--gold); }
.hero-eyebrow span {
  font-family: 'EB Garamond', serif;
  font-size: 12px; letter-spacing: 0.22em; color: var(--gold); text-transform: uppercase;
}
.hero-title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(26px, 3.2vw, 46px);
  font-weight: 600; line-height: 1.5; color: #1C2333;
  letter-spacing: -0.01em; margin-bottom: 10px;
  text-shadow: 0 1px 20px rgba(255,255,255,0.80);
}
.hero-title-br { display: none; }
.hero-sub {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(15px, 1.3vw, 19px);
  font-style: italic; color: #3D4A5C;
  line-height: 1.8; margin-bottom: 14px;
  text-shadow: 0 1px 12px rgba(255,255,255,0.65);
}
.hero-meta-info {
  display: flex; gap: 28px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 24px;
}
.hero-meta-info-item { display: flex; align-items: baseline; gap: 7px; }
.hero-meta-info-item .hmi-label {
  font-size: 11px; letter-spacing: 0.10em; color: rgba(80,55,20,0.7); text-transform: uppercase;
}
.hero-meta-info-item .hmi-value {
  font-size: 15px; font-weight: 500; color: var(--dark);
  text-shadow: 0 1px 12px rgba(255,255,255,0.8);
}
.hero-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn-p {
  background: var(--ac); color: #fff;
  padding: 13px 32px; border-radius: 26px;
  font-size: 15px; letter-spacing: 0.02em; transition: background .15s;
}
.btn-p:hover { background: var(--ac2); }
.btn-s {
  background: rgba(255,255,255,0.88);
  border: 0.5px solid rgba(0,0,0,0.12); color: var(--dark);
  padding: 13px 32px; border-radius: 26px;
  font-size: 15px; letter-spacing: 0.02em; transition: background .15s;
}
.btn-s:hover { background: #fff; }

/* ── STRIP ── */
.strip { border-top: 0.5px solid var(--border-n); border-bottom: 0.5px solid var(--border-n); }
.strip-inner { display: grid; grid-template-columns: repeat(4,1fr); max-width: var(--max); margin: 0 auto; }
.strip-cell { padding: 28px 36px; border-right: 0.5px solid var(--border-n); }
.strip-cell:last-child { border-right: none; }
.strip-cell .sl { font-size: 11px; letter-spacing: 0.10em; color: var(--mute); text-transform: uppercase; margin-bottom: 8px; }
.strip-cell .sv { font-size: 17px; font-weight: 500; color: var(--dark); margin-bottom: 4px; line-height: 1.4; }
.strip-cell .ss { font-size: 14px; color: var(--mute); line-height: 1.5; }

/* ── INTRO ── */
.intro { background: var(--pale); border-bottom: 0.5px solid var(--border-n); }
.intro-inner {
  max-width: var(--max); margin: 0 auto; padding: 56px 48px;
  display: grid; grid-template-columns: 1fr 2px 1fr; gap: 52px; align-items: center;
}
.intro-divider { background: var(--border-n); align-self: stretch; }
.intro-label { font-size: 11px; letter-spacing: 0.14em; color: var(--gold); text-transform: uppercase; margin-bottom: 10px; }
.intro-theme {
  font-family: 'Noto Serif JP', serif;
  font-size: 24px; font-weight: 600; color: var(--dark); line-height: 1.6; margin-bottom: 6px;
}
.intro-right p { font-size: 16px; color: var(--mid); line-height: 2.0; }
.intro-right p + p { margin-top: 16px; }

/* ── SECTION ── */
.sec { padding: 80px 0; }
.sec-pale { background: var(--pale); }
.sec-inner { max-width: var(--max); margin: 0 auto; padding: 0 48px; }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 40px; }
.sec-label { font-size: 11px; letter-spacing: 0.14em; color: var(--gold); text-transform: uppercase; font-weight: 500; margin-bottom: 6px; }
.sec-title { font-family: 'Noto Serif JP', serif; font-size: 30px; font-weight: 600; color: var(--dark); line-height: 1.4; }
.sec-more { font-size: 14px; color: var(--ac); border-bottom: 0.5px solid rgba(107,31,42,0.3); padding-bottom: 2px; white-space: nowrap; }
.sec-more:hover { border-color: var(--ac); }

/* ── NEWS ── */
.news-list { border-top: 0.5px solid var(--border-n); }
.news-item {
  display: grid; grid-template-columns: 116px 90px 1fr;
  gap: 22px; align-items: baseline;
  padding: 18px 0; border-bottom: 0.5px solid var(--border-n);
}
.news-date { font-size: 14px; color: var(--mute); }
.news-tag { font-size: 11px; color: var(--ac); background: #F5EAE8; padding: 3px 12px; border-radius: 10px; text-align: center; white-space: nowrap; }
.news-tag.gold { color: #7A5C10; background: var(--gold-light); }
.news-text { font-size: 16px; color: var(--dark); line-height: 1.7; }

/* ── VIDEO ── */
.video-wrap { max-width: 900px; margin: 0 auto; text-align: center; }
.video-responsive { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: var(--radius); background: #000; box-shadow: 0 4px 32px rgba(0,0,0,0.12); }
.video-responsive iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; }
.video-caption { margin-top: 12px; font-size: 13px; color: var(--mute); text-align: center; line-height: 1.7; }
#prev-congress { padding-bottom: 40px; }

/* ── PAGE NAV CARDS ── */
.pagenav-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.pnc {
  display: flex; align-items: flex-start; gap: 12px;
  border: 0.5px solid var(--border-n); border-radius: var(--radius);
  padding: 16px 18px; background: #fff;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.pnc:hover { border-color: rgba(184,150,62,0.45); box-shadow: 0 3px 16px rgba(184,150,62,0.09); transform: translateY(-2px); }
.pnc-regist { grid-column: 1 / -1; background: var(--ac); border-color: var(--ac); align-items: center; padding: 20px 28px; }
.pnc-regist:hover { background: var(--ac2); border-color: var(--ac2); transform: translateY(-2px); }
.pnc-icon { width: 32px; height: 32px; border-radius: var(--radius-sm); background: var(--pale); flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.pnc-icon svg { width: 16px; height: 16px; stroke: var(--gold); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.pnc-regist .pnc-icon { background: rgba(255,255,255,0.18); }
.pnc-regist .pnc-icon svg { stroke: #fff; }
.pnc-body { flex: 1; min-width: 0; }
.pnc-title { font-size: 14px; font-weight: 500; color: var(--dark); margin-bottom: 3px; line-height: 1.4; }
.pnc-regist .pnc-title { color: #fff; font-size: 18px; }
.pnc-desc { font-size: 12px; color: var(--mute); line-height: 1.65; }
.pnc-regist .pnc-desc { color: rgba(255,255,255,0.78); font-size: 13px; }
.pnc-arrow { font-size: 15px; color: var(--mute); margin-left: auto; flex-shrink: 0; align-self: center; }
.pnc-regist .pnc-arrow { color: rgba(255,255,255,0.75); font-size: 20px; }
.pnc-badge { display: inline-block; margin-top: 6px; background: rgba(255,255,255,0.2); color: #fff; font-size: 11px; padding: 2px 12px; border-radius: 10px; border: 0.5px solid rgba(255,255,255,0.3); }
.pnc-inactive { opacity: 0.35; cursor: default; pointer-events: none; filter: grayscale(40%); }
.pnc-inactive .pnc-arrow { opacity: 0; }
.pnc-coming { display: inline-block; margin-top: 6px; font-size: 11px; color: var(--mute); background: var(--pale); border: 0.5px solid var(--border-n); padding: 2px 10px; border-radius: 10px; letter-spacing: 0.04em; }
.pnc-regist-inactive { background: var(--ac); border-color: var(--ac); opacity: 0.60; cursor: default; pointer-events: none; }
.pnc-badge-coming { display: inline-block; margin-top: 7px; background: rgba(255,255,255,0.18); color: #fff; font-size: 12px; padding: 3px 13px; border-radius: 12px; border: 0.5px solid rgba(255,255,255,0.3); letter-spacing: 0.03em; }
.nav-inactive { opacity: 0.38 !important; cursor: not-allowed !important; pointer-events: none !important; }
.mobile-menu a.nav-inactive { opacity: 0.35; cursor: not-allowed; pointer-events: none; }
/* ── 未公開ページ向けの無効表示（準備中） ── */
.is-disabled { opacity: 0.5 !important; cursor: not-allowed !important; pointer-events: none !important; }
.sec-more.is-disabled { color: var(--mute) !important; border-color: transparent !important; opacity: 0.8 !important; }
.is-disabled small { font-size: 0.8em; opacity: 0.95; }

/* ── SPONSORS ── */
.sponsor-tiers { display: flex; flex-direction: column; gap: 28px; }
.sponsor-tier-label { font-size: 11px; letter-spacing: 0.12em; color: var(--mute); text-transform: uppercase; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 0.5px solid var(--border-n); }
.sponsor-logos { display: flex; gap: 14px; flex-wrap: wrap; }
.sponsor-logo-box { border: 0.5px solid var(--border-n); border-radius: var(--radius-sm); background: #fff; font-size: 14px; color: var(--mute); display: flex; align-items: center; justify-content: center; padding: 16px 32px; min-width: 160px; height: 72px; }
.sponsor-logos.platinum .sponsor-logo-box { min-width: 220px; height: 96px; font-size: 16px; }
.sponsor-logos.gold-tier .sponsor-logo-box { min-width: 180px; height: 80px; }
.sponsor-cta-row { margin-top: 32px; padding: 24px 32px; background: #fff; border: 0.5px solid var(--border-n); border-radius: var(--radius); display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.sponsor-cta-row p { font-size: 15px; color: var(--mid); line-height: 1.8; }
.sponsor-cta-row a { background: var(--ac); color: #fff; padding: 11px 26px; border-radius: 20px; font-size: 15px; white-space: nowrap; flex-shrink: 0; transition: background .15s; }
.sponsor-cta-row a:hover { background: var(--ac2); }

/* ── ORGANIZER ── */
.organizer { border-top: 0.5px solid var(--border-n); padding: 44px 0; }
.organizer-inner { max-width: var(--max); margin: 0 auto; padding: 0 48px; display: flex; align-items: center; gap: 40px; flex-wrap: wrap; }
.organizer-badge { font-size: 10px; letter-spacing: 0.12em; color: var(--gold); text-transform: uppercase; margin-bottom: 7px; }
.organizer-name { font-family: 'Noto Serif JP', serif; font-size: 20px; font-weight: 600; color: var(--dark); margin-bottom: 4px; }
.organizer-name-en { font-family: 'EB Garamond', serif; font-size: 14px; color: var(--mute); letter-spacing: 0.04em; margin-bottom: 12px; }
.organizer-link { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; color: var(--ac); border-bottom: 0.5px solid rgba(107,31,42,0.3); padding-bottom: 1px; }
.organizer-link:hover { border-color: var(--ac); }
.organizer-link svg { width: 13px; height: 13px; stroke: var(--ac); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ── FOOTER ── */
.footer { background: #0e0e12; padding: 56px 0 0; }
.footer-inner { max-width: var(--max); margin: 0 auto; padding: 0 48px 48px; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; }
.footer-brand .fb-logo { font-family: 'Noto Serif JP', serif; font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 3px; }
.footer-brand .fb-en { font-family: 'EB Garamond', serif; font-size: 11px; letter-spacing: 0.10em; color: rgba(255,255,255,0.32); text-transform: uppercase; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.44); line-height: 2.0; }
.footer-col h4 { font-size: 11px; letter-spacing: 0.10em; color: rgba(255,255,255,0.32); text-transform: uppercase; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,0.55); padding: 5px 0; transition: color .15s; line-height: 1.4; }
.footer-col a:hover { color: var(--gold); }
.footer-bottom { border-top: 0.5px solid rgba(255,255,255,0.08); padding: 22px 48px; max-width: var(--max); margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.28); }
.footer-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--gold); display: inline-block; margin-right: 8px; }

/* ════════════════════
   RESPONSIVE - TABLET
   ════════════════════ */
@media (max-width: 1080px) {
  .nav-main { display: none; }
  .nav-hamburger { display: flex; }
  .nav-cta { display: none; }
  .nav-bar { padding: 0 24px; }
}
@media (max-width: 900px) {
  .strip-inner { grid-template-columns: repeat(2,1fr); }
  .strip-cell:nth-child(2) { border-right: none; }
  .strip-cell:nth-child(3) { border-top: 0.5px solid var(--border-n); }
  .intro-inner { grid-template-columns: 1fr; gap: 24px; padding: 36px 24px; }
  .intro-divider { display: none; }
  .pagenav-grid { grid-template-columns: repeat(2,1fr); }
  .pnc-regist { grid-column: 1 / -1; }
  .sec-inner { padding: 0 24px; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; padding: 0 24px 40px; }
  .footer-bottom { padding: 20px 24px; }
  .organizer-inner { padding: 0 24px; }
  .sponsor-cta-row { flex-direction: column; align-items: flex-start; }
}

/* ════════════════════
   RESPONSIVE - MOBILE
   ════════════════════ */
@media (max-width: 768px) {
  /* ヒーロー: 縦長画像に切り替え */
  .hero-img-wide { display: none; }
  .hero-img-tall { display: block; position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 8%; }
  .hero { height: 130vw; min-height: 520px; max-height: 840px; }

  /* ヒーロー: グラデーション上寄り */
  .hero-overlay-grad {
    display: block;
    background: linear-gradient(to bottom, rgba(230,215,190,0.08) 0%, rgba(230,215,190,0.04) 50%, rgba(10,10,15,0.0) 100%);
  }

  /* ヒーロー: eyebrow非表示・上部配置 */
  .hero-eyebrow { display: none; }
  .hero-overlay { padding: 5% 20px 0; }

  /* ヒーロー: タイトルスタイル */
  .hero-title {
    white-space: normal;
    font-size: clamp(20px, 6vw, 30px);
    color: var(--dark);
    text-shadow: 0 1px 16px rgba(240,228,200,0.95), 0 0 40px rgba(240,228,200,0.8);
    margin-bottom: 6px; line-height: 1.45;
  }
  .hero-title-br { display: block; }
  .hero-sub { font-size: 13px; color: var(--mid); text-shadow: 0 1px 10px rgba(240,228,200,0.95); margin-bottom: 10px; }
  .hero-meta-info { flex-direction: column; gap: 3px; margin-bottom: 16px; }
  .hero-meta-info-item .hmi-label { font-size: 10px; color: rgba(80,55,20,0.65); }
  .hero-meta-info-item .hmi-value { font-size: 13px; color: var(--dark); text-shadow: 0 1px 10px rgba(240,228,200,0.9); }
  .hero-btns { justify-content: center; }
  .btn-p { font-size: 14px; padding: 11px 24px; }
  .btn-s { background: rgba(255,255,255,0.80); color: var(--dark); font-size: 14px; padding: 11px 24px; border-color: rgba(0,0,0,0.12); }

  /* その他 */
  .strip-inner { grid-template-columns: 1fr; }
  .strip-cell { border-right: none; border-bottom: 0.5px solid var(--border-n); }
  .pagenav-grid { grid-template-columns: 1fr; }
  .pnc-regist { grid-column: 1; }
  .footer-inner { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; gap: 6px; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 10px; }

  /* スポンサー: 2カラム / 3カラム */
  .sponsor-logos { display: grid; gap: 10px; }
  .sponsor-logos.platinum { grid-template-columns: repeat(2, 1fr); }
  .sponsor-logos.gold-tier { grid-template-columns: repeat(2, 1fr); }
  .sponsor-logos:not(.platinum):not(.gold-tier) { grid-template-columns: repeat(3, 1fr); }
  .sponsor-logo-box { min-width: 0; padding: 10px 8px; height: 48px; font-size: 12px; }
  .sponsor-logos.platinum .sponsor-logo-box { height: 64px; font-size: 13px; }
  .sponsor-logos.gold-tier .sponsor-logo-box { height: 56px; }
}

@media (max-width: 600px) {
  .sponsor-logos:not(.platinum):not(.gold-tier) { grid-template-columns: repeat(2, 1fr); }
}

/* ===== page.css ===== */
/* JSCMM 2027 — Subpage Common Styles */

.page-hero { background: var(--dark); padding: 44px 48px 40px; }
.page-hero-inner { max-width: var(--max); margin: 0 auto; }
.page-hero-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 36px; font-weight: 600; color: #fff; line-height: 1.3;
}
.page-hero-en {
  font-family: 'EB Garamond', serif;
  font-size: 14px; color: rgba(255,255,255,0.38); letter-spacing: 0.08em; margin-top: 6px;
}
.page-gold-line { height: 2px; background: var(--gold); }
@media (max-width: 768px) {
  .page-hero { padding: 36px 24px 32px; }
  .page-hero-title { font-size: 26px; }
}
/* ===== greeting_chair.css ===== */
/* JSCMM 2027 — greeting_chair page styles */

/* ── GREETING LAYOUT ── */
.greeting-wrap {
  max-width: var(--max); margin: 0 auto;
  padding: 64px 48px 88px;
  display: grid; grid-template-columns: 1fr 300px; gap: 72px; align-items: start;
}
.greeting-body-area {}
.greeting-theme-heading {
  font-family: 'Noto Serif JP', serif;
  font-size: 32px; font-weight: 600; color: var(--dark);
  line-height: 1.55; margin-bottom: 6px; letter-spacing: -0.01em;
}
.greeting-theme-sub {
  font-family: 'Noto Serif JP', serif;
  font-size: 18px; font-weight: 400; color: var(--mute);
  font-style: italic; margin-bottom: 44px;
  padding-bottom: 36px; border-bottom: 0.5px solid var(--border-n);
}
.greeting-lead {
  font-family: 'Noto Serif JP', serif;
  font-size: 17px; font-style: italic; line-height: 1.9;
  border-left: 2px solid var(--gold-light);
  padding-left: 20px; margin-bottom: 36px; color: var(--mid);
}
.greeting-text { font-size: 16px; color: var(--mid); line-height: 2.2; }
.greeting-text p + p { margin-top: 22px; }
.greeting-sign { margin-top: 44px; padding-top: 28px; border-top: 0.5px solid var(--border-n); text-align: right; }
.greeting-sign .gs-org { font-size: 13px; color: var(--mute); margin-bottom: 6px; line-height: 1.7; }
.greeting-sign .gs-role { font-size: 13px; color: var(--mute); margin-bottom: 4px; }
.greeting-sign .gs-name { font-family: 'Noto Serif JP', serif; font-size: 24px; font-weight: 600; color: var(--dark); }
.greeting-aside {}
.greeting-card {
  border: 0.5px solid var(--border-n); border-radius: var(--radius);
  padding: 32px; background: #fff; position: sticky; top: 88px;
}
.greeting-card-role { font-size: 10px; letter-spacing: 0.10em; color: var(--gold); text-transform: uppercase; margin-bottom: 10px; }
.greeting-card-name { font-family: 'Noto Serif JP', serif; font-size: 26px; font-weight: 600; color: var(--dark); margin-bottom: 8px; }
.greeting-card-affil { font-size: 13px; color: var(--mute); line-height: 1.8; }
.greeting-card-divider { height: 0.5px; background: var(--border-n); margin: 22px 0; }
.greeting-card-meta { display: flex; flex-direction: column; gap: 14px; }
.gcm-item .gcm-label { font-size: 10px; letter-spacing: 0.08em; color: var(--mute); text-transform: uppercase; margin-bottom: 3px; }
.gcm-item .gcm-value { font-size: 14px; font-weight: 500; color: var(--dark); line-height: 1.5; }
@media (max-width: 900px) {
  .greeting-wrap { grid-template-columns: 1fr; gap: 36px; padding: 40px 24px 56px; }
  .greeting-card { position: static; }
}
/* ===== overview.css ===== */
/* JSCMM 2027 — overview page styles */

/* ── OVERVIEW TABLE ── */
.overview-wrap { max-width: var(--max); margin: 0 auto; padding: 64px 48px 80px; }
.overview-table { width: 100%; border-collapse: collapse; font-size: 16px; }
.overview-table tr { border-bottom: 0.5px solid var(--border-n); }
.overview-table tr:first-child { border-top: 0.5px solid var(--border-n); }
.overview-table th {
  width: 180px; padding: 22px 24px 22px 0;
  font-weight: 500; color: var(--mute); vertical-align: top;
  font-size: 14px; letter-spacing: 0.03em; white-space: nowrap; text-align: left;
}
.overview-table td { padding: 22px 0; color: var(--dark); vertical-align: top; line-height: 1.85; font-size: 16px; }
.overview-table td a { color: var(--ac); border-bottom: 0.5px solid rgba(107,31,42,0.3); }
.overview-table td a:hover { border-color: var(--ac); }
.overview-table .td-sub { font-size: 14px; color: var(--mute); margin-top: 4px; line-height: 1.7; }
.overview-note { margin-top: 48px; padding-top: 24px; border-top: 0.5px solid var(--border-n); font-size: 14px; color: var(--mute); line-height: 2.0; }
@media (max-width: 768px) {
  .overview-wrap { padding: 36px 24px 56px; }
  .overview-table th { width: 100px; font-size: 13px; padding: 16px 16px 16px 0; }
  .overview-table td { padding: 16px 0; font-size: 15px; }
}
@media (max-width: 560px) {
  .overview-table, .overview-table tbody, .overview-table tr,
  .overview-table th, .overview-table td { display: block; }
  .overview-table tr { padding: 16px 0; }
  .overview-table th { padding-bottom: 4px; border-bottom: none; }
  .overview-table td { padding-top: 0; }
}
/* ===== access.css ===== */
/* JSCMM 2027 — access page styles */

/* ── ACCESS ── */
.access-wrap { max-width: var(--max); margin: 0 auto; padding: 64px 48px 88px; }
.access-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.access-map-wrap { border-radius: var(--radius); overflow: hidden; border: 0.5px solid var(--border-n); }
.access-map-wrap iframe { display: block; width: 100%; height: 400px; border: none; }
.access-info {}
.access-venue-name { font-family: 'Noto Serif JP', serif; font-size: 24px; font-weight: 600; color: var(--dark); margin-bottom: 4px; }
.access-venue-en { font-family: 'EB Garamond', serif; font-size: 13px; color: var(--mute); letter-spacing: 0.04em; margin-bottom: 24px; }
.access-rows { border-top: 0.5px solid var(--border-n); margin-bottom: 28px; }
.access-row { display: flex; gap: 20px; align-items: flex-start; padding: 15px 0; border-bottom: 0.5px solid var(--border-n); }
.access-row-label { font-size: 11px; letter-spacing: 0.06em; color: var(--mute); text-transform: uppercase; min-width: 64px; padding-top: 3px; flex-shrink: 0; }
.access-row-val { font-size: 15px; color: var(--dark); line-height: 1.8; }
.access-row-val a { color: var(--ac); border-bottom: 0.5px solid rgba(107,31,42,0.25); }
.access-row-val a:hover { border-color: var(--ac); }
.access-route { background: #FAF5F0; border-radius: var(--radius-sm); padding: 20px 22px; }
.access-route-title { font-size: 13px; font-weight: 500; color: var(--dark); margin-bottom: 12px; letter-spacing: 0.02em; }
.access-route-item { display: flex; align-items: flex-start; gap: 10px; padding: 8px 0; border-bottom: 0.5px solid var(--border-n); font-size: 14px; color: var(--mid); line-height: 1.7; }
.access-route-item:last-child { border-bottom: none; }
.access-route-item::before { content: '→'; color: var(--gold); font-size: 12px; margin-top: 3px; flex-shrink: 0; }
.access-map-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 20px; font-size: 14px; color: var(--ac); border-bottom: 0.5px solid rgba(107,31,42,0.25); padding-bottom: 1px; }
.access-map-link:hover { border-color: var(--ac); }
.access-map-link svg { width: 13px; height: 13px; stroke: var(--ac); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
@media (max-width: 900px) {
  .access-grid { grid-template-columns: 1fr; gap: 36px; }
  .access-wrap { padding: 36px 24px 56px; }
}
/* ===== contact.css ===== */
/* JSCMM 2027 — contact page styles */

/* ── CONTACT ── */
.contact-wrap { max-width: 760px; margin: 0 auto; padding: 64px 48px 88px; }
.contact-intro { font-size: 16px; color: var(--mid); line-height: 2.0; margin-bottom: 44px; padding-bottom: 36px; border-bottom: 0.5px solid var(--border-n); }
.contact-form-area { margin-bottom: 56px; }
.contact-form-placeholder {
  border: 0.5px solid var(--border-n); border-radius: var(--radius);
  padding: 56px 32px; text-align: center; background: var(--pale);
  display: flex; flex-direction: column; align-items: center; gap: 14px;
}
.cfp-icon svg { width: 36px; height: 36px; stroke: var(--mute); fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.cfp-text { font-size: 15px; color: var(--mute); line-height: 1.9; }
.contact-info { border-top: 0.5px solid var(--border-n); padding-top: 36px; }
.contact-info-title { font-family: 'Noto Serif JP', serif; font-size: 17px; font-weight: 600; color: var(--dark); margin-bottom: 16px; }
.contact-info-row { display: grid; grid-template-columns: 120px 1fr; gap: 8px 16px; align-items: baseline; padding: 10px 0; border-bottom: 0.5px solid var(--border-n); font-size: 15px; }
.contact-info-row:last-child { border-bottom: none; }
.contact-label { color: var(--mute); font-size: 13px; }
.contact-value { color: var(--dark); line-height: 1.7; }
.contact-value a { color: var(--ac); border-bottom: 0.5px solid rgba(107,31,42,0.25); }
.contact-value a:hover { border-color: var(--ac); }
@media (max-width: 600px) {
  .contact-wrap { padding: 36px 24px 56px; }
  .contact-info-row { grid-template-columns: 1fr; gap: 3px; }
}