:root {
  /* 立命館えんじ（Ritsumeikan Crimson）系。元の --c-navy* 命名はCSS全体で参照しているため温存し、値のみ赤系へ差し替え */
  --c-navy: #8E1728;
  --c-navy-2: #A8233B;
  --c-navy-3: #6B0F1D;
  --c-gold: #C8973B;
  --c-gold-light: #E8BC5A;
  --c-steel: #B8860B;
  --c-bg: #F8F6F0;
  --c-bg-card: #F4F2EC;
  --c-text: #1A1A1A;
  --c-text-sub: #555555;
  --c-text-mute: #888888;
  --c-border: #E0DDD6;

  --font-jp-serif: 'Noto Serif JP', 'Yu Mincho', '游明朝', serif;
  --font-jp-sans: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  --font-en-serif: 'Playfair Display', Georgia, serif;
  --font-en-sans: 'Inter', system-ui, sans-serif;

  --container: 1200px;
  --pad-x: 60px;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-jp-sans);
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

button {
  font: inherit;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* ========== HEADER ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  background: var(--c-navy);
  z-index: 100;
  transition: box-shadow .3s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 2px 16px rgba(0, 0, 0, .25);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 var(--pad-x);
  max-width: 1440px;
  margin: 0 auto;
}

.site-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  color: #fff;
  flex-shrink: 0;
}

.site-logo__sub {
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 3px;
  opacity: .85;
}

.site-logo__main {
  font-family: var(--font-en-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: 1px;
  margin-top: 4px;
}

.site-nav {
  flex: 1;
}

.site-nav__list {
  display: flex;
  gap: 24px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.site-nav__list a {
  font-size: 12px;
  color: #ccc;
  position: relative;
  padding: 4px 0;
  transition: color .2s ease;
}

.site-nav__list a:hover,
.site-nav__list a.is-current {
  color: #fff;
}

.site-nav__list a.is-current::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 20px;
  height: 2px;
  background: var(--c-gold);
}

.header-cta {
  display: inline-block;
  background: var(--c-gold);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 4px;
  flex-shrink: 0;
  transition: background .2s ease;
}

.header-cta:hover {
  background: var(--c-gold-light);
}

.hamburger {
  display: none;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 0;
}

.hamburger span {
  display: block;
  width: 28px;
  height: 2px;
  background: #fff;
  transition: transform .3s ease, opacity .3s ease;
}

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 100vh;
  padding: calc(var(--header-h) + 80px) var(--pad-x) 100px;
  background: linear-gradient(135deg, var(--c-navy) 0%, var(--c-navy-2) 60%, var(--c-navy-3) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero__pattern {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.75;
  pointer-events: none;
  mix-blend-mode: multiply;
}

.hero__pattern svg {
  width: 100%;
  height: 100%;
  display: block;
}

.hero__big-number {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -65%);
  font-family: var(--font-en-serif);
  font-size: 280px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px var(--c-gold);
  letter-spacing: -10px;
  opacity: .12;
  pointer-events: none;
  line-height: 1;
}

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 960px;
  animation: fadeUp 1.1s ease both;
}

.hero__eyebrow {
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 8px;
  opacity: .7;
  margin: 0 0 40px;
}

.hero__title {
  font-family: var(--font-jp-sans);
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 4px;
  margin: 0 0 24px;
}

.hero__title-line1,
.hero__title-line2 {
  display: block;
}

.hero__title-line2 {
  color: var(--c-gold);
}

.hero__catch {
  font-family: var(--font-jp-serif);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--c-gold);
  margin: 0 0 14px;
}

.hero__subtitle {
  font-family: var(--font-en-serif);
  font-size: 16px;
  font-style: italic;
  letter-spacing: 3px;
  color: #F4D9B8;
  margin: 0 0 32px;
}

.hero__lead {
  font-size: 14px;
  font-weight: 300;
  color: #F5E6D8;
  line-height: 1.9;
  margin: 0 0 48px;
}

.hero__actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-block;
  padding: 16px 36px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 4px;
  transition: all .25s ease;
  text-align: center;
  letter-spacing: .5px;
  min-width: 200px;
}

.btn--primary {
  background: var(--c-gold);
  color: #fff;
}

.btn--primary:hover {
  background: var(--c-gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200, 151, 59, .35);
}

.btn--outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid #fff;
}

.btn--outline:hover {
  background: rgba(255, 255, 255, .1);
}

.btn--outline-dark {
  background: transparent;
  color: var(--c-navy);
  border: 1.5px solid var(--c-navy);
}

.btn--outline-dark:hover {
  background: var(--c-navy);
  color: #fff;
}

.btn--block {
  display: block;
  width: 100%;
}

.btn--lg {
  padding: 20px 48px;
  font-size: 18px;
  min-width: 400px;
}

/* ========== MILESTONE ========== */
.milestone {
  background: #fff;
  padding: 32px var(--pad-x);
  position: relative;
}

.milestone::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(to right, var(--c-gold), var(--c-gold-light), var(--c-gold));
  opacity: .6;
}

.milestone__label {
  font-size: 12px;
  font-weight: 700;
  color: var(--c-navy);
  letter-spacing: 6px;
  text-align: center;
  margin: 0 0 28px;
}

.milestone__list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  max-width: 1320px;
  margin: 0 auto;
  position: relative;
  align-items: center;
}

.milestone__list::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--c-border);
  z-index: 0;
}

.milestone__item {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--c-steel);
}

.milestone__item--accent {
  color: var(--c-gold);
}

.milestone__year {
  display: block;
  font-family: var(--font-en-serif);
  font-size: 12px;
  font-weight: 700;
}

.milestone__item--current .milestone__year {
  font-size: 14px;
}

.milestone__dot {
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: currentColor;
  margin: 6px auto;
}

.milestone__item--accent .milestone__dot {
  width: 16px;
  height: 16px;
}

.milestone__item--current .milestone__dot {
  width: 20px;
  height: 20px;
}

.milestone__text {
  display: block;
  font-size: 11px;
  color: var(--c-text-sub);
}

.milestone__item--current .milestone__text {
  color: var(--c-navy);
  font-weight: 700;
}

/* ========== SECTION HEAD ========== */
.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-head__label {
  font-size: 12px;
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: 5px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 24px;
}

.section-head__label .line {
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--c-gold);
}

.section-head__label--simple {
  display: block;
}

.section-head__title {
  font-family: var(--font-en-serif);
  font-size: clamp(26px, 3.2vw, 34px);
  font-weight: 700;
  color: var(--c-navy);
  margin: 0 0 16px;
  line-height: 1.4;
}

.section-head__title--big {
  font-size: clamp(32px, 4.5vw, 44px);
}

.section-head__title--big span {
  display: block;
}

.section-head__lead {
  font-size: 14px;
  font-weight: 300;
  color: var(--c-text-mute);
  margin: 0;
}

.section-head--light .section-head__title {
  color: #fff;
}

.section-head__lead--light {
  color: #F5E0D5;
}

.text-gold {
  color: var(--c-gold);
}

/* ========== PROGRAMS / CARDS ========== */
.programs {
  padding: 96px 0;
  background: var(--c-bg);
}

.programs--second {
  padding-top: 0;
}

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

.card {
  background: linear-gradient(to bottom, #fff, var(--c-bg-card));
  border: 1px solid var(--c-border);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  transition: transform .3s ease, box-shadow .3s ease;
  color: var(--c-text);
  display: flex;
  flex-direction: column;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  border-radius: 3px 3px 0 0;
  background: var(--c-gold);
}

.card--steel::before { background: var(--c-steel); }
.card--navy::before { background: var(--c-navy); }

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(142, 23, 40, .15);
}

.card__media {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #AAA;
  font-size: 13px;
  letter-spacing: 1px;
}

.card__media--beige { background: #E8E4DC; }
.card__media--blue { background: #DDE4EC; }
.card__media--gray { background: #D8DCE4; }
.card__media--green { background: #E4E8DC; }

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card__body {
  padding: 28px 24px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card__eyebrow {
  font-size: 11px;
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: 3px;
  margin: 0 0 8px;
}

.card--steel .card__eyebrow { color: var(--c-steel); }
.card--navy .card__eyebrow { color: var(--c-navy); }

.card__title {
  font-family: var(--font-en-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0 0 12px;
}

.card__text {
  font-size: 13px;
  font-weight: 300;
  color: var(--c-text-sub);
  line-height: 1.7;
  margin: 0 0 20px;
  flex: 1;
}

.card__more {
  font-size: 13px;
  font-weight: 700;
  color: var(--c-steel);
}

/* ========== EVENT HIGHLIGHT ========== */
.event-highlight {
  padding: 96px 0;
  background: #fff;
  position: relative;
}

.event-highlight::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--c-gold);
}

.event-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 60px;
  align-items: start;
  max-width: 720px;
  margin: 0 auto;
}

.event-info__label {
  font-size: 11px;
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: 3px;
  margin: 0 0 12px;
}

.event-info__label--mt {
  margin-top: 40px;
}

.event-info__date {
  font-family: var(--font-en-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0 0 8px;
}

.event-info__venue {
  font-size: 14px;
  color: var(--c-text-sub);
  margin: 0 0 4px;
}

.event-info__addr {
  font-size: 13px;
  color: var(--c-text-mute);
  margin: 0;
}

.timeline {
  position: relative;
  padding-left: 0;
  margin-top: 16px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--c-border);
}

.timeline__item {
  position: relative;
  padding-left: 24px;
  padding-bottom: 16px;
  display: flex;
  gap: 0;
}

.timeline__item > div {
  flex: 1;
}

.timeline__dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-steel);
}

.timeline__item--accent .timeline__dot {
  background: var(--c-gold);
}

.timeline__item--break .timeline__dot {
  background: #fff;
  border: 2px solid var(--c-border);
  box-sizing: border-box;
}

.timeline__item--break .timeline__name {
  font-style: italic;
  color: var(--c-text-mute);
}

.timeline__note {
  margin: 16px 0 0;
  font-size: 12px;
  color: var(--c-text-mute);
  line-height: 1.7;
}

.timeline__time {
  font-size: 13px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0;
}

.timeline__name {
  font-size: 13px;
  color: var(--c-text-sub);
  margin: 2px 0 0;
}
.timeline__desc {
  font-size: 12px;
  color: var(--c-text-mute);
  margin: 2px 0 0;
  line-height: 1.6;
}
.timeline__link {
  margin: 8px 0 0;
  font-size: 12.5px;
  font-weight: 700;
}
.timeline__link a {
  color: var(--c-navy);
  text-decoration: none;
  border-bottom: 1px solid rgba(142, 23, 40, 0.3);
  padding-bottom: 1px;
  transition: border-color 0.2s ease;
}
.timeline__link a:hover {
  border-bottom-color: var(--c-navy);
}

.event-cta {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 40px 32px;
  position: relative;
  text-align: center;
}

.event-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: var(--c-gold);
  border-radius: 4px 4px 0 0;
}

.event-cta__title {
  font-family: var(--font-en-serif);
  font-size: 26px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0 0 12px;
}

.event-cta__lead {
  font-size: 13px;
  color: var(--c-text-sub);
  margin: 0 0 24px;
  line-height: 1.7;
}

.event-cta__categories {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.event-cta__cat {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 4px;
  padding: 12px;
}

.event-cta__cat-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0 0 4px;
}

.event-cta__cat-value {
  font-family: var(--font-en-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-steel);
  margin: 0;
}

/* ========== DONATION APPEAL ========== */
.donation-appeal {
  background: linear-gradient(to right, var(--c-navy), var(--c-navy-3));
  color: #fff;
  padding: 96px 0 100px;
  position: relative;
  overflow: hidden;
}

.donation-appeal::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(to right, var(--c-gold), var(--c-gold-light), var(--c-gold));
  opacity: .8;
}

.donation-appeal__deco {
  position: absolute;
  right: -100px;
  top: 50%;
  width: 400px;
  height: 400px;
  transform: translateY(-50%);
  opacity: .12;
  pointer-events: none;
}

.donation-benefits {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin: 56px 0 48px;
}

.benefit-card {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 6px;
  padding: 32px 28px;
  text-align: center;
}

.benefit-card__label {
  font-size: 13px;
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: 2px;
  margin: 0 0 16px;
}

.benefit-card__list {
  margin: 0 0 24px;
  font-size: 13px;
  font-weight: 300;
  line-height: 1.9;
}

.benefit-card__list li {
  margin-bottom: 4px;
}

.benefit-card__link {
  display: inline-block;
  color: var(--c-gold);
  font-size: 13px;
  font-weight: 700;
  transition: opacity .2s ease;
}

.benefit-card__link:hover {
  opacity: .75;
}

.donation-appeal__cta {
  text-align: center;
  position: relative;
  z-index: 2;
}

/* ========== MESSAGE ========== */
.message {
  background: #fff;
  padding: 96px 0;
}

.quote {
  max-width: 880px;
  margin: 0 auto;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-left: 5px solid var(--c-gold);
  border-radius: 6px;
  padding: 48px 56px 40px;
  position: relative;
}

.quote::before {
  content: '\201C';
  position: absolute;
  top: 16px;
  left: 32px;
  font-family: var(--font-en-serif);
  font-size: 80px;
  color: var(--c-gold);
  opacity: .3;
  line-height: 1;
}

.quote p {
  font-size: 15px;
  font-weight: 300;
  color: #333;
  line-height: 1.95;
  margin: 0 0 16px;
}

.quote__author {
  font-size: 13px;
  color: var(--c-text-sub);
  text-align: right;
  margin-top: 24px;
  font-style: normal;
}

/* ========== GREETING (実行委員会からのご挨拶 全文) ========== */
.greeting {
  background: #fff;
  padding: 96px 0;
}

.greeting__body {
  max-width: 880px;
  margin: 0 auto;
}

.greeting__subhead {
  font-family: var(--font-jp-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-navy);
  border-left: 4px solid var(--c-gold);
  padding-left: 14px;
  margin: 40px 0 20px;
}

.greeting__subhead:first-of-type {
  margin-top: 8px;
}

.greeting__body p {
  max-width: 880px;
  margin: 0 auto 18px;
  padding: 0 24px;
  font-size: 15px;
  font-weight: 400;
  color: #333;
  line-height: 1.95;
  text-align: justify;
}

.greeting__sign {
  max-width: 880px;
  margin: 40px auto 0;
  padding: 0 24px;
  text-align: right;
  font-family: var(--font-jp-serif);
  font-size: 14px;
  color: var(--c-text);
  line-height: 1.8;
}

.greeting__sign .greeting__sign-chair {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-text);
  margin-top: 4px;
}

@media (max-width: 880px) {
  .greeting {
    padding: 56px 0;
  }
  .greeting__subhead {
    font-size: 17px;
  }
  .greeting__body p {
    font-size: 13.5px;
    line-height: 1.9;
  }
}

/* ========== ORGANIZERS ========== */
.organizers {
  background: var(--c-bg);
  padding: 72px 0 80px;
}

.organizers__block {
  margin-top: 40px;
}

.organizers__block:first-child {
  margin-top: 0;
}

.organizers__head {
  text-align: center;
  margin-bottom: 24px;
}

.organizers__label {
  font-size: 11px;
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: 4px;
  margin: 0 0 8px;
}

.organizers__title {
  font-family: var(--font-jp-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0;
  letter-spacing: 0.08em;
  position: relative;
  display: inline-block;
  padding: 0 18px;
}

.organizers__title::before,
.organizers__title::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 24px;
  height: 1px;
  background: var(--c-gold);
}

.organizers__title::before { left: -24px; }
.organizers__title::after { right: -24px; }

.organizers__scroll {
  position: relative;
  /* 左右端のフェードマスクでスクロール余地を示唆 */
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 24px, #000 calc(100% - 24px), transparent 100%);
          mask-image: linear-gradient(to right, transparent 0, #000 24px, #000 calc(100% - 24px), transparent 100%);
}

.organizers__list {
  display: flex;
  flex-wrap: nowrap;
  justify-content: flex-start;
  align-items: stretch;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 4px 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--c-border) transparent;
}

/* 枠が1つだけのブロックは中央寄せ表示（主催・共催） */
.organizers__list:has(.org-logo:only-child) {
  justify-content: center;
}

/* 協賛・後援ブロックも中央寄せ */
.organizers__block:nth-child(3) .organizers__list {
  justify-content: center;
}

.organizers__list::-webkit-scrollbar {
  height: 6px;
}
.organizers__list::-webkit-scrollbar-thumb {
  background: var(--c-border);
  border-radius: 3px;
}
.organizers__list::-webkit-scrollbar-track {
  background: transparent;
}

.org-logo {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 180px;
  height: 80px;
  padding: 10px 12px;
  scroll-snap-align: start;
  transition: transform .2s ease, opacity .2s ease;
  text-decoration: none;
  color: inherit;
}

.org-logo--link:hover {
  transform: translateY(-2px);
  opacity: 0.85;
}

.org-logo img,
.org-logo__placeholder {
  max-width: 100%;
  max-height: 100%;
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.org-logo--with-caption {
  flex-direction: column;
  height: auto;
  padding: 6px 8px 8px;
  gap: 6px;
}
.org-logo--with-caption .org-logo__media {
  width: 100%;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.org-logo--with-caption .org-logo__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.org-logo__caption {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 10px;
  line-height: 1.3;
  color: #111;
  text-align: center;
  letter-spacing: -0.02em;
  word-break: keep-all;
}

.org-logo__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  width: 100%;
  height: 100%;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  color: #111;
  letter-spacing: -0.01em;
}

.org-logo__text span {
  display: block;
  white-space: nowrap;
}

.org-logo__text-sub {
  font-size: 11px;
  color: #555;
  margin-top: 2px;
}

/* 長い団体名を含む枠は文字サイズを微調整 */
.org-logo[aria-label*="ASTER"] .org-logo__text {
  font-size: 12px;
}

/* 主催ブロックの枠は1行表示用に拡張 */
.organizers__block:nth-child(1) .org-logo {
  width: 400px;
}
.organizers__block:nth-child(1) .org-logo__text {
  font-size: 19px;
}
.organizers__block:nth-child(1) .org-logo__text span {
  white-space: nowrap;
}

/* 共催ブロックの枠は文字が長いのでさらに広め */
.organizers__block:nth-child(2) .org-logo {
  width: 480px;
}
.organizers__block:nth-child(2) .org-logo__text {
  font-size: 19px;
}
.organizers__block:nth-child(2) .org-logo__text span {
  white-space: nowrap;
}

@media (max-width: 880px) {
  .organizers {
    padding: 56px 0 64px;
  }
  .organizers__list {
    gap: 12px;
    padding: 4px 16px;
  }
  .org-logo {
    width: 160px;
    height: 72px;
  }
  .organizers__block:nth-child(1) .org-logo {
    width: 360px;
  }
  .organizers__block:nth-child(1) .org-logo__text {
    font-size: 17px;
  }
  .organizers__block:nth-child(2) .org-logo {
    width: 440px;
  }
  .organizers__block:nth-child(2) .org-logo__text {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .organizers__list {
    gap: 10px;
    padding: 4px 12px;
  }
  .org-logo {
    width: 150px;
    height: 68px;
  }
  .organizers__block:nth-child(1) .org-logo {
    width: calc(100vw - 32px);
    max-width: 360px;
  }
  .organizers__block:nth-child(1) .org-logo__text {
    font-size: 15px;
  }
  .organizers__block:nth-child(2) .org-logo {
    width: calc(100vw - 32px);
    max-width: 420px;
  }
  .organizers__block:nth-child(2) .org-logo__text {
    font-size: 13px;
  }
}

/* ========== CONTACT ========== */
.contact {
  background: var(--c-bg);
  border-top: 3px solid var(--c-border);
  padding: 72px 0;
  text-align: center;
}

.contact__office {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0 0 8px;
}

.contact__addr {
  font-size: 14px;
  color: #555;
  margin: 0 0 4px;
  line-height: 1.7;
}

.contact__tel {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 8px 0 4px;
  letter-spacing: 0.04em;
}

.contact__email {
  font-size: 14px;
  color: var(--c-steel);
  margin: 4px 0 32px;
}

.contact__email a {
  border-bottom: 1px dotted var(--c-steel);
}

.contact__cta {
  margin-top: 8px;
}

/* ========== SITE FOOTER ========== */
.site-footer {
  background: var(--c-navy);
  color: #fff;
  padding: 56px 0 32px;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(to right, var(--c-gold), var(--c-gold-light), var(--c-gold));
  opacity: .6;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 2fr 1fr;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-brand__sub {
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 2px;
  opacity: .6;
  margin: 0;
}

.footer-brand__main {
  font-family: var(--font-en-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-gold);
  margin: 4px 0 12px;
}

.footer-brand__addr {
  font-size: 12px;
  color: #888;
  margin: 0;
  line-height: 1.7;
}

.footer-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.footer-nav a {
  font-size: 12px;
  color: #ccc;
  display: block;
  padding: 4px 0;
  transition: color .2s ease;
}

.footer-nav a:hover {
  color: var(--c-gold);
}

.footer-jarsia {
  border: 1px dashed #6E2030;
  border-radius: 4px;
  padding: 12px;
  text-align: center;
  align-self: start;
}

.footer-jarsia img {
  max-height: 56px;
  margin: 0 auto 6px;
  filter: brightness(0) invert(1);
  opacity: .85;
}

.footer-jarsia__note {
  font-size: 10px;
  color: #C8856F;
  margin: 0;
}

.footer-copy {
  border-top: 1px solid #6E1525;
  padding-top: 24px;
  text-align: center;
}

.footer-copy p {
  font-size: 11px;
  color: #D6A89A;
  margin: 0 0 4px;
}

/* ========== ANIMATIONS ========== */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .9s ease, transform .9s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== PAGE HERO (下層共通) ========== */
.page-hero {
  background: linear-gradient(135deg, var(--c-navy), var(--c-navy-3));
  color: #fff;
  padding: calc(var(--header-h) + 64px) var(--pad-x) 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(to right, var(--c-gold), var(--c-gold-light), var(--c-gold));
  opacity: .7;
}

.page-hero__title {
  font-family: var(--font-en-serif);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  margin: 0 0 12px;
  letter-spacing: 2px;
}

.page-hero__sub {
  font-family: var(--font-en-serif);
  font-style: italic;
  color: var(--c-gold);
  letter-spacing: 3px;
  margin: 0 0 16px;
}

.breadcrumb {
  font-size: 12px;
  color: #F5E0D5;
  margin: 0;
}

.breadcrumb a {
  border-bottom: 1px dotted #F5E0D5;
}

.page-body {
  background: var(--c-bg);
  padding: 80px 0 96px;
}

.page-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.page-content > img {
  width: 100%;
  height: auto;
  margin: 0 0 32px;
  border-radius: 4px;
  display: block;
}

.page-content h2 {
  font-family: var(--font-en-serif);
  color: var(--c-navy);
  font-size: 26px;
  margin: 48px 0 16px;
  border-left: 4px solid var(--c-gold);
  padding-left: 16px;
}

.page-content h2:first-child {
  margin-top: 0;
}

.page-content h3 {
  font-family: var(--font-jp-serif);
  color: var(--c-navy);
  font-size: 18px;
  font-weight: 700;
  margin: 28px 0 10px;
}

.research-figure {
  margin: 0 0 32px;
}

.research-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.08);
}
.research-figure__caption {
  margin: 10px 0 0;
  font-size: 12.5px;
  color: var(--c-text-mute);
  text-align: right;
  line-height: 1.6;
}

.page-content ul.bullet-list {
  list-style: disc;
  padding-left: 1.6em;
  margin: 12px 0 20px;
}
.page-content ul.bullet-list li {
  margin: 4px 0;
  line-height: 1.8;
}

.btn.is-disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: auto;
}
.registration-guide__action {
  margin: 16px 0 0;
  text-align: center;
}

/* Hallmark · redesign scope: symposium-research speaker cards + sympo polish
 * pre-emit critique: P5 H5 E4 S4 R5 V4  (editorial · restrained · crimson axis)
 */

.sympo-shortcut {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin: 32px 0 28px;
}
.sympo-shortcut__card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px 26px 24px;
  border: 1px solid var(--c-border);
  border-radius: 4px;
  background: #fff;
  color: var(--c-text);
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.25s ease, border-color 0.2s ease;
}
.sympo-shortcut__card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--c-navy);
}
.sympo-shortcut__card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(142, 23, 40, 0.12);
  border-color: var(--c-navy);
}
.sympo-shortcut__label {
  font-family: var(--font-en-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-navy);
  margin: 0 0 4px;
}
.sympo-shortcut__title {
  font-family: var(--font-jp-serif);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.55;
  margin: 6px 0 18px;
  color: var(--c-text);
  letter-spacing: 0.01em;
}
.sympo-shortcut__more {
  font-size: 13px;
  color: var(--c-navy);
  font-weight: 700;
  margin: auto 0 0;
  letter-spacing: 0.04em;
}

.page-content .sympo-detail__title {
  font-family: var(--font-jp-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 6px 0 20px;
  line-height: 1.5;
  letter-spacing: 0.01em;
}

.sympo-program-item {
  position: relative;
  padding: 24px 26px 22px;
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-navy);
  border-radius: 4px;
  background: #fff;
  margin: 20px 0;
}
.sympo-program-item h3 {
  margin-top: 0;
  margin-bottom: 10px;
  font-family: var(--font-jp-serif);
  font-size: 18px;
  color: var(--c-text);
}
.sympo-lecture {
  margin: 16px 0 8px;
  padding: 12px 0 12px 16px;
  border-left: 2px solid var(--c-border);
}
.sympo-lecture__label {
  font-family: var(--font-en-sans);
  font-size: 11px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0 0 4px;
  letter-spacing: 0.12em;
  text-transform: none;
}
.sympo-lecture__title {
  font-family: var(--font-jp-serif);
  font-weight: 700;
  font-size: 16px;
  margin: 4px 0 8px;
  color: var(--c-text);
}
.sympo-lecture__speaker {
  font-size: 14px;
  color: var(--c-text);
  margin: 6px 0 0;
  font-weight: 500;
}
.sympo-lecture__sublabel {
  font-family: var(--font-jp-serif);
  font-weight: 700;
  margin: 18px 0 6px;
  font-size: 15px;
  color: var(--c-navy);
  border-bottom: 1px solid var(--c-border);
  padding-bottom: 4px;
}

/* Speaker card — the top ask: emphasize name + role prominently */
.sympo-speaker-list {
  display: grid;
  gap: 18px;
  margin: 20px 0 12px;
}
.sympo-speaker {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 0 24px;
  padding: 26px 28px;
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-navy);
  border-radius: 4px;
  background: #fff;
  align-items: start;
}
.sympo-speaker__index {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-top: 4px;
  border-right: 1px solid var(--c-border);
  padding-right: 20px;
  min-height: 60px;
}
.sympo-speaker__index-num {
  font-family: var(--font-en-serif);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-navy);
  letter-spacing: -0.02em;
}
.sympo-speaker__index-label {
  font-family: var(--font-en-sans);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-text-sub);
  margin-top: 6px;
}
.sympo-speaker__body {
  min-width: 0;
}
.sympo-speaker__name {
  font-family: var(--font-jp-serif);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 10px;
  color: var(--c-text);
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
  min-width: 0;
}
.sympo-speaker__honorific {
  font-size: 15px;
  color: var(--c-text-sub);
  font-weight: 500;
  margin-left: 8px;
  letter-spacing: 0.02em;
}
.sympo-speaker__affil {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  margin: 0 0 14px;
}
.sympo-speaker__role {
  display: inline-block;
  padding: 4px 12px;
  background: var(--c-navy);
  color: #fff;
  font-family: var(--font-jp-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  border-radius: 2px;
  white-space: nowrap;
  line-height: 1.4;
}
.sympo-speaker__inst {
  font-size: 14.5px;
  color: var(--c-text);
  line-height: 1.7;
  font-weight: 500;
}
.sympo-speaker__desc {
  font-size: 14.5px;
  color: var(--c-text-sub);
  line-height: 1.85;
  margin: 0;
}

.page-content .note-mute {
  font-size: 12.5px;
  color: var(--c-text-mute);
  margin: 12px 0;
}
.page-content .back-link {
  margin: 40px 0 8px;
}

@media (max-width: 640px) {
  .sympo-shortcut {
    grid-template-columns: 1fr;
  }
  .sympo-speaker {
    grid-template-columns: 1fr;
    padding: 22px 22px;
    gap: 16px;
  }
  .sympo-speaker__index {
    flex-direction: row;
    align-items: baseline;
    gap: 12px;
    border-right: 0;
    border-bottom: 1px solid var(--c-border);
    padding: 0 0 12px;
    min-height: 0;
  }
  .sympo-speaker__index-num {
    font-size: 26px;
  }
  .sympo-speaker__index-label {
    margin-top: 0;
  }
  .sympo-speaker__name {
    font-size: 20px;
  }
  .sympo-program-item {
    padding: 20px 20px 18px;
  }
}

.coming-soon {
  text-align: center;
  padding: 96px 24px;
  border: 1px dashed var(--c-border);
  border-radius: 8px;
  background: #fff;
}

.coming-soon__label {
  font-family: var(--font-en-serif);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 6px;
  color: var(--c-gold);
  margin: 0 0 16px;
}

.coming-soon__title {
  font-family: var(--font-jp-sans);
  font-size: 40px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0 0 24px;
  letter-spacing: 8px;
}

.coming-soon__lead {
  font-size: 15px;
  line-height: 2;
  color: var(--c-text-sub);
  margin: 0;
}

/* lab.html 用 */
.feature-3col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin: 24px 0 40px;
}

.feature-card {
  background: var(--c-bg);
  border-left: 3px solid var(--c-gold);
  padding: 20px 22px;
  border-radius: 4px;
}

.page-content .feature-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0 0 8px;
  padding: 0;
  border-left: 0;
}

.page-content .feature-card p {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-text-sub);
  margin: 0;
  padding: 0;
  max-width: none;
}

.course-list {
  display: grid;
  gap: 14px;
  margin: 24px 0 40px;
}

.course-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 24px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 6px;
}

.course-item__num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--c-navy);
  color: var(--c-gold);
  font-family: var(--font-en-serif);
  font-size: 22px;
  font-weight: 700;
  border-radius: 50%;
}

.page-content .course-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 6px 0 4px;
  padding: 0;
  border-left: 0;
}

.page-content .course-item p {
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
  padding: 0;
  max-width: none;
}

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin: 24px 0 40px;
}

.equipment-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 6px;
  overflow: hidden;
  padding-bottom: 24px;
}

.equipment-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  background: #f0e8e0;
}

.page-content .equipment-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 22px 26px 6px;
  padding: 0;
  border-left: 0;
}

.page-content .equipment-card__spec {
  font-size: 12px;
  font-family: var(--font-en-serif);
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: 1px;
  margin: 0 26px 14px;
}

.page-content .equipment-card p {
  font-size: 13px;
  line-height: 1.85;
  color: var(--c-text-sub);
  margin: 0 26px;
  padding: 0;
  max-width: none;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin: 24px 0 16px;
}

.video-card__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 6px;
  overflow: hidden;
}

.video-card__frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.page-content .video-card p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-sub);
  margin: 10px 0 0;
  padding: 0;
  max-width: none;
}

.news-list {
  list-style: none;
  padding: 0;
  margin: 16px 0 32px;
  border-top: 1px solid var(--c-border);
}

.news-list li {
  display: flex;
  gap: 24px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--c-border);
  align-items: flex-start;
}

.news-list__date {
  flex-shrink: 0;
  font-family: var(--font-en-serif);
  font-size: 13px;
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: 1px;
  min-width: 100px;
  padding-top: 2px;
}

.news-list__text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-text);
}

.news-list__text a {
  display: inline-block;
  margin-top: 6px;
  color: var(--c-navy);
  font-weight: 700;
}

@media (max-width: 600px) {
  .news-list li {
    flex-direction: column;
    gap: 6px;
  }
}

.page-content p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-text);
  margin: 0 0 16px;
}

.page-content .placeholder {
  background: #fff;
  border: 1px dashed var(--c-border);
  padding: 48px 24px;
  text-align: center;
  color: var(--c-text-mute);
  border-radius: 6px;
  margin: 24px 0;
}

.page-content .contact-block {
  background: #FAFAFA;
  border: 1px solid var(--c-border);
  border-radius: 4px;
  padding: 16px 20px;
  line-height: 1.9;
  margin: 0 0 24px;
}

.page-content .notice {
  background: #FFF7E5;
  border-left: 4px solid #C9A227;
  padding: 14px 18px;
  border-radius: 4px;
  margin: 24px 0;
  line-height: 1.8;
}
.page-content .notice .notice__mark {
  color: #B7791F;
  font-weight: 700;
  margin-right: 4px;
}

/* 法人・団体寄付の連絡ブロック（金色枠で強調） */
.page-content .corp-donation {
  background: linear-gradient(135deg, #FFF8E8 0%, #FFFCF2 100%);
  border: 2px solid #C9A227;
  border-radius: 6px;
  padding: 20px 24px;
  margin: 20px 0 24px;
  line-height: 1.85;
  box-shadow: 0 2px 10px rgba(201, 162, 39, .12);
}
.page-content .corp-donation__label {
  font-weight: 700;
  font-size: 17px;
  color: #8C6A14;
  margin: 0 0 8px;
  letter-spacing: .04em;
}
.page-content .corp-donation__body {
  font-size: 15.5px;
  margin: 0;
}
.page-content .corp-donation__action {
  margin: 14px 0 0;
}
.page-content .corp-donation + .corp-donation {
  margin-top: 12px;
}
.page-content .corp-donation__mail {
  font-weight: 700;
  color: #C9A227;
  font-size: 16.5px;
  text-decoration: none;
  border-bottom: 1px dashed #C9A227;
  padding-bottom: 1px;
  word-break: break-all;
}
.page-content .corp-donation__mail:hover {
  color: #B7791F;
  border-bottom-color: #B7791F;
}

/* インラインCTAボタン（本文中の【問合せフォーム】等） */
.inline-cta {
  display: inline-block;
  padding: 6px 14px 7px;
  margin: 0 2px;
  background: #C9A227;
  color: #fff !important;
  border-radius: 4px;
  font-weight: 700;
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none !important;
  letter-spacing: 0.02em;
  box-shadow: 0 1px 3px rgba(10, 22, 60, 0.12);
  transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
  vertical-align: middle;
  white-space: nowrap;
}
.inline-cta:hover {
  background: #B58E1F;
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(10, 22, 60, 0.18);
}
.inline-cta::after {
  content: " →";
  font-weight: 400;
}

html { scroll-behavior: smooth; }
.event-highlight { scroll-margin-top: 80px; }

/* ---------- お問い合わせフォーム ---------- */
.page-content .contact-form {
  background: #fff;
  border: 1px solid var(--c-border);
  border-top: 3px solid #C9A227;
  border-radius: 6px;
  padding: 40px 44px 32px;
  margin: 16px 0 48px;
  box-shadow: 0 2px 18px rgba(10, 22, 60, 0.06);
}
.page-content .contact-form .form-row {
  display: block !important;
  margin: 0 0 22px !important;
}
.page-content .contact-form .form-row.form-row--inline {
  display: grid !important;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.page-content .contact-form label {
  display: block !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  color: var(--c-navy) !important;
  margin: 0 0 8px !important;
  letter-spacing: 0.02em;
}
.page-content .contact-form .required {
  display: inline-block !important;
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  background: #C9A227;
  padding: 3px 8px;
  border-radius: 3px;
  margin-left: 8px;
  vertical-align: middle;
  letter-spacing: 1px;
  line-height: 1;
}
.page-content .contact-form .optional {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  color: var(--c-text-mute);
  background: #F0EFEC;
  padding: 3px 8px;
  border-radius: 3px;
  margin-left: 8px;
  vertical-align: middle;
  letter-spacing: 1px;
  line-height: 1;
}
.page-content .contact-form .field-help {
  display: block;
  font-size: 12px;
  color: var(--c-text-mute);
  margin: 6px 0 0;
  line-height: 1.6;
  font-weight: 400;
}
.page-content .contact-form input[type="text"],
.page-content .contact-form input[type="email"],
.page-content .contact-form input[type="tel"],
.page-content .contact-form select,
.page-content .contact-form textarea {
  width: 100% !important;
  box-sizing: border-box;
  background: #fff;
  border: 1px solid #DAD7CF;
  border-radius: 4px;
  padding: 14px 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--c-text);
  line-height: 1.5;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.page-content .contact-form select {
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--c-navy) 50%), linear-gradient(135deg, var(--c-navy) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 36px;
  cursor: pointer;
}
.page-content .contact-form textarea {
  resize: vertical;
  min-height: 180px;
}
.page-content .contact-form input::placeholder,
.page-content .contact-form textarea::placeholder {
  color: #B5B0A4;
}
.page-content .contact-form input:focus,
.page-content .contact-form select:focus,
.page-content .contact-form textarea:focus {
  outline: none;
  border-color: var(--c-navy);
  box-shadow: 0 0 0 3px rgba(10, 22, 60, 0.08);
}
.page-content .contact-form .form-divider {
  height: 1px;
  background: var(--c-border);
  border: 0;
  margin: 28px 0 24px;
}
.page-content .contact-form .form-note {
  font-size: 12px;
  color: var(--c-text-mute);
  margin: 8px 0 24px;
  line-height: 1.7;
  text-align: center;
}
.page-content .contact-form .form-actions {
  text-align: center;
  margin-top: 8px;
}
.page-content .contact-form .form-actions .btn {
  min-width: 240px;
}

/* ---------- Q&A アコーディオン ---------- */
.page-content .qa-list {
  margin: 8px 0 32px;
  border-top: 1px solid var(--c-border);
}
.page-content .qa-item {
  border-bottom: 1px solid var(--c-border);
  background: #fff;
}
.page-content .qa-item > summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 48px 20px 16px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-navy);
  position: relative;
  line-height: 1.6;
  transition: background 0.15s ease;
}
.page-content .qa-item > summary:hover { background: #FAF8F2; }
.page-content .qa-item > summary::-webkit-details-marker { display: none; }
.page-content .qa-item > summary::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid #C9A227;
  border-bottom: 2px solid #C9A227;
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.2s ease;
}
.page-content .qa-item[open] > summary::after {
  transform: translateY(-30%) rotate(-135deg);
}
.page-content .qa-item__body {
  padding: 0 16px 20px;
  color: var(--c-text);
  font-size: 14px;
  line-height: 1.9;
  background: #FAFAFA;
}
.page-content .qa-item__body p { margin: 0; padding-top: 4px; }

@media (max-width: 720px) {
  .page-content .contact-form { padding: 24px 18px 18px; }
  .page-content .contact-form .form-row.form-row--inline { grid-template-columns: 1fr; gap: 22px; }
  .page-content .qa-item > summary { font-size: 14px; padding: 16px 40px 16px 12px; }
  .page-content .qa-item__body { padding: 0 12px 16px; }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1080px) {
  :root {
    --pad-x: 32px;
  }
  .site-nav__list {
    gap: 14px;
  }
  .site-nav__list a {
    font-size: 11px;
  }
}

@media (max-width: 880px) {
  :root {
    --header-h: 56px;
    --pad-x: 16px;
  }

  .header-inner {
    gap: 0;
    justify-content: space-between;
    padding: 0 16px;
  }

  .site-logo__sub {
    font-size: 9px;
    letter-spacing: 2px;
  }

  .site-logo__main {
    font-size: 14px;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: var(--c-navy);
    transform: translateX(100%);
    transition: transform .3s ease;
    padding: 32px 24px;
    overflow-y: auto;
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav__list {
    flex-direction: column;
    gap: 0;
    justify-content: flex-start;
  }

  .site-nav__list a {
    font-size: 16px;
    padding: 18px 0;
    display: block;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
  }

  .site-nav__list a.is-current::after {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hamburger.is-open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .hamburger.is-open span:nth-child(2) {
    opacity: 0;
  }
  .hamburger.is-open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  /* HERO */
  .hero {
    padding: calc(var(--header-h) + 60px) 24px 60px;
    min-height: auto;
  }

  .hero__pattern {
    width: 60%;
  }

  .hero__big-number {
    font-size: 180px;
    transform: translate(-50%, -50%);
  }

  .hero__eyebrow {
    font-size: 10px;
    letter-spacing: 5px;
    margin-bottom: 24px;
  }

  .hero__title {
    font-size: 30px;
    letter-spacing: 1px;
  }

  .hero__subtitle {
    font-size: 11px;
    letter-spacing: 2px;
    margin-bottom: 24px;
  }

  .hero__lead {
    font-size: 12px;
    line-height: 1.8;
    margin-bottom: 32px;
  }

  .hero__actions {
    flex-direction: column;
    gap: 12px;
    align-items: stretch;
  }

  .btn {
    width: 100%;
    min-width: 0;
    padding: 14px 24px;
    font-size: 14px;
  }

  .btn--lg {
    padding: 16px 24px;
    font-size: 15px;
    min-width: 0;
  }

  /* MILESTONE */
  .milestone {
    padding: 28px 16px 24px;
    overflow-x: auto;
  }

  .milestone__list {
    grid-template-columns: repeat(6, minmax(70px, 1fr));
    min-width: 480px;
    gap: 8px;
  }

  .milestone__year {
    font-size: 10px;
  }

  .milestone__text {
    font-size: 9px;
  }

  /* PROGRAMS */
  .programs {
    padding: 56px 0;
  }

  .programs--second {
    padding-top: 0;
  }

  .card-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .section-head__title {
    font-size: 22px;
  }

  .section-head__title--big {
    font-size: 30px;
  }

  /* EVENT */
  .event-highlight {
    padding: 56px 0;
  }

  .event-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .event-info__date {
    font-size: 22px;
  }

  .event-cta {
    padding: 32px 20px;
  }

  .event-cta__title {
    font-size: 22px;
  }

  .event-cta__categories {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  /* DONATION */
  .donation-appeal {
    padding: 56px 0;
  }

  .donation-benefits {
    grid-template-columns: 1fr;
    gap: 16px;
    margin: 32px 0;
  }

  /* MESSAGE */
  .message {
    padding: 56px 0;
  }

  .quote {
    padding: 32px 24px 24px;
  }

  .quote p {
    font-size: 13px;
  }

  /* CONTACT */
  .contact {
    padding: 48px 0;
  }

  /* FOOTER */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-nav {
    grid-template-columns: 1fr 1fr;
  }

  .footer-jarsia {
    max-width: 200px;
  }

  /* PAGE HERO */
  .page-hero {
    padding: calc(var(--header-h) + 48px) 16px 48px;
  }

  .page-body {
    padding: 48px 0 64px;
  }

  .page-content h2 {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 26px;
  }
  .hero__big-number {
    font-size: 140px;
  }
}

/* ========== NEWS ========== */
.news {
  background: var(--c-bg);
  padding: 72px 0 80px;
}
.news__list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 880px;
  border-top: 1px solid var(--c-border);
}
.news__item {
  border-bottom: 1px solid var(--c-border);
}
.news__details {
  width: 100%;
}
.news__summary {
  display: grid;
  grid-template-columns: 110px 1fr 16px;
  align-items: baseline;
  gap: 20px;
  padding: 18px 8px;
  cursor: pointer;
  list-style: none;
  position: relative;
  transition: background-color .15s ease;
}
.news__summary::-webkit-details-marker {
  display: none;
}
.news__summary::after {
  content: "+";
  color: var(--c-gold);
  font-weight: 700;
  font-size: 18px;
  text-align: center;
  transition: transform .2s ease;
}
.news__details[open] .news__summary::after {
  content: "−";
}
.news__summary:hover {
  background-color: rgba(200, 151, 59, 0.05);
}
.news__date {
  font-family: var(--font-en-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--c-gold);
}
.news__title {
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text);
  line-height: 1.6;
}
.news__body {
  padding: 4px 8px 24px 138px;
  color: var(--c-text-sub);
  font-size: 14px;
  line-height: 1.9;
}
.news__body h2,
.news__body h3,
.news__body h4 {
  color: var(--c-navy);
  margin: 1.2em 0 .6em;
  line-height: 1.4;
}
.news__body h2 { font-size: 17px; }
.news__body h3 { font-size: 15px; }
.news__body p { margin: 0 0 .8em; }
.news__body ul,
.news__body ol { padding-left: 1.4em; margin: 0 0 .8em; }
.news__body a {
  color: var(--c-navy);
  text-decoration: underline;
}
.news__body a:hover {
  color: var(--c-gold);
}
.news__body blockquote {
  margin: 0 0 .8em;
  padding: 8px 14px;
  border-left: 3px solid var(--c-gold);
  background: #fff;
  color: var(--c-text-sub);
}
.news__body code {
  background: #f3f1eb;
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 13px;
}
.news__empty {
  text-align: center;
  color: var(--c-text-mute);
  font-size: 14px;
  margin: 24px 0 0;
}

@media (max-width: 720px) {
  .news { padding: 56px 0 64px; }
  .news__summary {
    grid-template-columns: 90px 1fr 16px;
    gap: 14px;
    padding: 14px 4px;
  }
  .news__date { font-size: 12px; letter-spacing: .5px; }
  .news__title { font-size: 14px; }
  .news__body { padding: 4px 4px 20px 104px; font-size: 13.5px; }
}
@media (max-width: 480px) {
  .news__summary {
    grid-template-columns: 1fr 16px;
    row-gap: 4px;
  }
  .news__date { grid-column: 1 / 2; }
  .news__title { grid-column: 1 / 2; }
  .news__summary::after { grid-column: 2 / 3; grid-row: 1 / 3; align-self: center; }
  .news__body { padding-left: 4px; }
}

/* ========== AUDIENCE (社会に開かれたイベント) ========== */
.only-sp { display: none; }
@media (max-width: 720px) { .only-sp { display: inline; } }

.audience {
  background: #fff;
  padding: 48px var(--pad-x) 56px;
  border-bottom: 1px solid var(--c-border);
  text-align: center;
}
.audience .container { max-width: 1040px; }
.audience__title {
  font-family: var(--font-jp-serif);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--c-navy);
  margin: 0 0 14px;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.audience__lead {
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-text-sub);
  margin: 0;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.audience__list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.audience__list li {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--c-navy);
  background: #FBF6EC;
  border: 1px solid #E7D9B8;
  padding: 8px 16px;
  border-radius: 999px;
  letter-spacing: .3px;
}
@media (max-width: 720px) {
  .audience { padding: 40px 20px 44px; }
  .audience__title { font-size: 20px; }
  .audience__lead { font-size: 14px; }
  .audience__list li { font-size: 12.5px; padding: 6px 12px; }
}

/* ========== JOURNEY (記念事業の全体構造) ========== */
.journey {
  background: var(--c-bg);
  padding: 72px var(--pad-x) 80px;
}
.journey-steps {
  list-style: none;
  padding: 0;
  margin: 40px 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
}
.journey-step {
  position: relative;
  background: #fff;
  border-radius: 12px;
  padding: 32px 26px 28px;
  box-shadow: 0 6px 24px rgba(20, 20, 20, .06);
  border-top: 4px solid var(--c-gold);
  transition: transform .25s ease, box-shadow .25s ease;
}
.journey-step:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(20, 20, 20, .12);
}
.journey-step--past { border-top-color: #C8973B; }
.journey-step--present { border-top-color: #8E1728; }
.journey-step--future { border-top-color: #4A5B7C; }

.journey-step:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 12px solid var(--c-gold);
  opacity: .6;
  z-index: 1;
}
.journey-step__eyebrow {
  font-family: var(--font-en-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--c-text-mute);
  margin: 0 0 10px;
}
.journey-step__title {
  font-family: var(--font-jp-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0 0 16px;
  letter-spacing: .5px;
}
.journey-step__items {
  list-style: none;
  padding: 0;
  margin: 0;
}
.journey-step__items li {
  position: relative;
  padding: 8px 0 8px 22px;
  border-bottom: 1px dashed var(--c-border);
  font-size: 14.5px;
  color: var(--c-text);
}
.journey-step__items li:last-child { border-bottom: none; }
.journey-step__items li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 15px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-gold);
}
.journey-step--present .journey-step__items li::before { background: var(--c-navy); }
.journey-step--future .journey-step__items li::before { background: #4A5B7C; }

@media (max-width: 900px) {
  .journey-steps { grid-template-columns: 1fr; gap: 32px; }
  .journey-step:not(:last-child)::after {
    right: 50%;
    top: auto;
    bottom: -22px;
    transform: translateX(50%);
    border-top: 12px solid var(--c-gold);
    border-bottom: none;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
  }
}
@media (max-width: 720px) {
  .journey { padding: 56px 20px 64px; }
  .journey-step { padding: 26px 22px 22px; }
  .journey-step__title { font-size: 20px; }
}

/* ========== ORG-LOGO (ロゴのみ・キャプション無し) ========== */
.org-logo--only-media {
  flex-direction: column;
  height: auto;
  padding: 6px 8px 8px;
  gap: 0;
}
.org-logo--only-media .org-logo__media {
  width: 100%;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.org-logo--only-media .org-logo__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* ========== GREETING (折り畳み) ========== */
.greeting__short {
  margin: 0 0 12px;
}
.greeting__short p {
  margin: 0 0 1em;
  font-size: 15px;
  line-height: 2;
  color: var(--c-text);
}
.greeting__full {
  margin: 12px 0 0;
  animation: greetingFadeIn .35s ease;
}
.greeting__full[hidden] { display: none !important; }
@keyframes greetingFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.greeting__toggle-wrap {
  text-align: center;
  margin: 20px 0 32px;
}
.greeting__toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--c-navy);
  border: 1.5px solid var(--c-navy);
  padding: 12px 32px;
  font-family: var(--font-jp-sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .5px;
  border-radius: 999px;
  cursor: pointer;
  transition: all .25s ease;
}
.greeting__toggle:hover {
  background: var(--c-navy);
  color: #fff;
}
.greeting__toggle-icon {
  transition: transform .25s ease;
  display: inline-block;
  font-size: 12px;
}
.greeting__toggle[aria-expanded="true"] .greeting__toggle-icon {
  transform: rotate(180deg);
}

/* ========== REGISTRATION GUIDE (事前登録要否) ========== */
.registration-guide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 20px 0 32px;
}
.registration-guide--single { grid-template-columns: 1fr; max-width: 640px; }
.registration-guide__block {
  padding: 24px 24px 22px;
  border-radius: 10px;
  border: 1px solid var(--c-border);
  background: #fff;
}
.registration-guide__block--required {
  border-color: var(--c-navy);
  background: linear-gradient(180deg, #FDF6F7 0%, #FFFFFF 100%);
}
.registration-guide__block--free {
  border-color: var(--c-gold);
  background: linear-gradient(180deg, #FBF6EC 0%, #FFFFFF 100%);
}
.registration-guide__badge {
  font-family: var(--font-jp-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--c-navy);
  margin: 0 0 4px;
  letter-spacing: .3px;
}
.registration-guide__block--free .registration-guide__badge { color: #A17A1F; }
.registration-guide__badge strong {
  color: #C7223A;
  font-weight: 700;
  padding: 0 2px;
}
.registration-guide__block--free .registration-guide__badge strong { color: var(--c-gold); }
.registration-guide__note {
  font-size: 13px;
  color: var(--c-text-sub);
  margin: 0 0 14px;
}
.registration-guide__list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.registration-guide__list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--c-border);
  font-size: 14px;
}
.registration-guide__list li:last-child { border-bottom: none; }
.registration-guide__item small {
  display: block;
  font-size: 11.5px;
  color: var(--c-text-mute);
  margin-top: 2px;
}
.registration-guide__fee {
  flex-shrink: 0;
  font-family: var(--font-en-sans);
  font-size: 12.5px;
  font-weight: 700;
  color: #2C7A2E;
  background: #E9F5EA;
  border-radius: 4px;
  padding: 4px 10px;
  letter-spacing: .3px;
}
.registration-guide__fee--paid {
  color: #B02436;
  background: #FBE9EC;
}
.registration-guide__caution {
  margin: 14px 0 0;
  padding: 10px 12px;
  background: #FFF8E1;
  border-left: 3px solid var(--c-gold);
  font-size: 12.5px;
  color: var(--c-text-sub);
  line-height: 1.7;
}
.registration-guide__links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.registration-guide__links li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--c-border);
}
.registration-guide__links li:last-child { border-bottom: none; }
.registration-guide__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-navy);
  text-decoration: none;
}
.registration-guide__links a:hover { color: var(--c-gold); }

@media (max-width: 720px) {
  .registration-guide { grid-template-columns: 1fr; gap: 16px; }
  .registration-guide__block { padding: 20px 18px; }
}

/* ========== event-highlight in-page (symposium.html) ========== */
.event-highlight--inpage {
  padding: 0;
  margin: 0 -20px 40px;
  background: transparent;
}
.event-highlight--inpage .container {
  padding: 0;
}

/* ========== contact form error message ========== */
.cf-error-box {
  background: #fdecea;
  border-left: 4px solid #c62828;
  color: #8a1a17;
  padding: 12px 16px;
  margin: 0 0 20px;
  border-radius: 4px;
  font-size: 15px;
  line-height: 1.55;
}

/* ========== contact form confirm modal ========== */
.cf-modal { position: fixed; inset: 0; z-index: 9999; display: flex; align-items: center; justify-content: center; padding: 20px; }
.cf-modal[hidden] { display: none; }
.cf-modal__backdrop { position: absolute; inset: 0; background: rgba(20,20,20,.55); }
.cf-modal__dialog {
  position: relative; background: #fff; border-radius: 6px; max-width: 640px; width: 100%;
  max-height: 88vh; overflow-y: auto; box-shadow: 0 12px 40px rgba(0,0,0,.35);
  padding: 28px 30px 24px;
}
.cf-modal__title {
  font-size: 20px; font-weight: 700; color: #8E1728;
  border-left: 4px solid #C8973B; padding-left: 12px; margin: 0 0 12px;
}
.cf-modal__lead { color: #444; font-size: 14px; line-height: 1.7; margin: 0 0 16px; }
.cf-modal__summary {
  background: #f7f6f2; border: 1px solid #d9d5c9; border-radius: 4px;
  padding: 14px 18px; margin: 0 0 20px;
  display: grid; grid-template-columns: 130px 1fr; gap: 10px 16px;
  font-size: 14px; line-height: 1.7;
}
.cf-modal__summary dt { font-weight: 700; color: #555; }
.cf-modal__summary dd { margin: 0; word-wrap: break-word; overflow-wrap: break-word; }
.cf-modal__empty { color: #999; font-size: 13px; }
.cf-modal__actions { display: flex; gap: 12px; justify-content: flex-end; flex-wrap: wrap; }
.cf-modal__btn { min-width: 180px; padding: 14px 24px; font-size: 15px; letter-spacing: normal; }
@media (max-width: 600px) {
  .cf-modal__dialog { padding: 22px 20px 20px; }
  .cf-modal__summary { grid-template-columns: 100px 1fr; gap: 8px 12px; font-size: 13px; }
  .cf-modal__actions { flex-direction: column-reverse; }
  .cf-modal__btn { width: 100%; min-width: 0; }
}