/* ==========================================================================
   components.css — ボタン・カード・バッジ・アコーディオン・ヒーロー等
   ========================================================================== */

/* ---------- ボタン ---------- */

.btn-primary,
.btn-secondary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 32px;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.btn-navy {
  background: var(--color-navy);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
}

.btn-navy:hover {
  background: #1a2f70;
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--color-white);
  background: transparent;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid var(--color-white);
  color: var(--color-white);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.3);
}

.btn-block {
  display: flex;
  width: 100%;
  justify-content: center;
}

#main {
  position: relative;
}

/* ---------- ヒーロー ---------- */

.hero {
  position: relative;
  padding-top: 64px;
  line-height: 0;
}

.hero-full {
  display: block;
  width: 100%;
  height: auto;
}

.site-flame {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 22px;
  background-image: url("../images/flame-border.jpg");
  background-repeat: repeat-y;
  background-size: 22px auto;
  z-index: 999;
  pointer-events: none;
}

.site-flame--left {
  left: 0;
}

.site-flame--right {
  right: 0;
}

@media (min-width: 768px) {
  .site-flame {
    width: 32px;
    background-size: 32px auto;
  }
}

.floating-apply-btn {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 600;
  width: 140px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.4s ease, transform 0.4s ease, visibility 0.4s;
  pointer-events: none;
}

.floating-apply-btn.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.floating-apply-btn:hover {
  transform: translateY(-4px);
}

.floating-apply-btn img {
  width: 100%;
  height: auto;
}

@media (min-width: 768px) {
  .floating-apply-btn {
    right: 28px;
    bottom: 28px;
    width: 190px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .floating-apply-btn {
    transition: opacity 0.3s ease, visibility 0.3s;
    transform: none;
  }
  .floating-apply-btn.is-visible {
    transform: none;
  }
}

/* ---------- 応募期間リボン ---------- */

.period-ribbon {
  background: var(--color-navy);
  border-top: 1px dashed rgba(255, 255, 255, 0.25);
  border-bottom: 1px dashed rgba(255, 255, 255, 0.25);
  padding: 16px 0;
}

.period-ribbon__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  color: var(--color-white);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.period-ribbon__label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 14px;
  border-radius: var(--radius-btn);
  background: var(--color-accent);
  font-size: 11px;
  letter-spacing: 0.15em;
}

.period-ribbon__date {
  font-family: var(--font-en);
  color: var(--color-sky-light);
  font-size: 15px;
  letter-spacing: 0.02em;
}

@media (min-width: 768px) {
  .period-ribbon__inner {
    font-size: 14px;
  }
  .period-ribbon__date {
    font-size: 17px;
  }
}

/* ---------- 就航地ティザー（写真帯） ---------- */

.dest-teaser {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
  .dest-teaser {
    grid-template-columns: repeat(4, 1fr);
  }
}

.dest-teaser__item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.35) 1px, transparent 1px),
    var(--dest-gradient, linear-gradient(135deg, var(--color-sky), var(--color-navy-light)));
  background-size: 14px 14px, cover;
}

.dest-teaser__item span {
  position: absolute;
  left: 14px;
  bottom: 12px;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-white);
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.3);
}

/* ---------- ごあいさつ（左右フォトブックエンド） ---------- */

.message-section {
  position: relative;
  padding: 0;
  overflow: hidden;
}

.message-media {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 20%;
  background-color: var(--color-white);
}

.message-media--left {
  left: 0;
}

.message-media--right {
  right: 0;
}

.message-heading {
  position: relative;
  z-index: 1;
  padding: var(--space-xl) var(--space-md) 0;
  text-align: center;
}

.message-heading .eyebrow {
  display: block;
}

.message-heading h2 {
  margin-top: var(--space-sm);
}

.message-row {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 340px;
}

.message-content {
  width: 60%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-lg) var(--space-xl);
}

.message-content__mascot {
  flex: none;
  width: 190px;
  height: auto;
}

@media (max-width: 767px) {
  .message-content {
    flex-direction: column;
  }
  .message-content__mascot {
    width: 150px;
  }
}

.message-content .section-head {
  margin: 0;
  max-width: 620px;
}

.section-head--left {
  text-align: left;
  margin-left: 0;
  margin-right: 0;
}

@media (max-width: 767px) {
  .section-head--left {
    text-align: center;
  }
  .message-media {
    display: none;
  }
  .message-row {
    min-height: 0;
  }
  .message-content {
    width: 100%;
    padding: var(--space-lg) var(--space-md);
  }
}

/* ---------- 概要スタッツ ---------- */

.stats-band {
  position: relative;
  padding-top: var(--space-lg);
  padding-bottom: var(--space-sm);
}

.stats-card {
  background: var(--color-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  padding: var(--space-md);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  text-align: center;
}

@media (min-width: 768px) {
  .stats-card {
    grid-template-columns: repeat(4, 1fr);
    padding: var(--space-lg);
  }
}

.stat-value {
  font-family: var(--font-en);
  font-size: 30px;
  font-weight: 600;
  color: var(--color-navy);
}

@media (min-width: 768px) {
  .stat-value {
    font-size: 36px;
  }
}

.stat-value span {
  margin-left: 4px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-sky);
}

.stat-label {
  margin-top: 4px;
  font-size: 12px;
  color: var(--color-navy-soft);
}

/* ---------- ごあいさつ ---------- */

.message-quote {
  max-width: 760px;
  margin: var(--space-lg) auto 0;
  padding: var(--space-lg) var(--space-md);
  border: 1px solid rgba(0, 18, 94, 0.1);
  border-radius: var(--radius-card);
  background: var(--color-gray);
  font-family: var(--font-mincho);
  font-size: 16px;
  line-height: 2;
  text-align: center;
}

@media (min-width: 768px) {
  .message-quote {
    padding: var(--space-lg) var(--space-xl);
    font-size: 18px;
  }
}

.message-quote__credit {
  margin-top: var(--space-sm);
  text-align: right;
  font-size: 12px;
  color: var(--color-navy-soft);
}

.pillar-card {
  height: 100%;
  padding: var(--space-md);
  border: 1px solid rgba(0, 18, 94, 0.1);
  border-radius: var(--radius-card);
  background: var(--color-white);
  box-shadow: 0 10px 30px -15px rgba(0, 18, 94, 0.15);
  transition: transform 0.3s ease;
}

.pillar-card:hover {
  transform: translateY(-4px);
}

.pillar-card__no {
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-sky);
}

.pillar-card h3 {
  margin-top: 10px;
  font-size: 15px;
}

.pillar-card p {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-navy-soft);
}

/* ---------- プレゼント内容 ---------- */

.prize-card {
  height: 100%;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.prize-card__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: var(--space-md) var(--space-lg);
  color: var(--color-white);
}

.prize-card__head--a {
  background: var(--color-accent);
}

.prize-card__head--b {
  background: var(--color-sky);
}

.prize-card__badge {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-white);
  font-size: 15px;
  font-weight: 700;
}

.prize-card--a .prize-card__badge {
  color: var(--color-accent);
}

.prize-card--b .prize-card__badge {
  color: var(--color-sky);
}

.prize-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
}

@media (min-width: 768px) {
  .prize-card__title {
    font-size: 20px;
  }
}

.prize-card__body {
  padding: var(--space-lg);
}

.prize-card__tagline {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-navy);
}

@media (min-width: 768px) {
  .prize-card__tagline {
    font-size: 19px;
  }
}

.prize-card__lead {
  margin-top: var(--space-sm);
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .prize-card__lead {
    font-size: 15px;
  }
}

.prize-card__divider {
  margin: var(--space-md) 0;
  border: none;
  border-top: 1px dashed rgba(0, 18, 94, 0.2);
}

.prize-card__details {
  display: grid;
  gap: var(--space-sm);
}

.prize-card__details dt {
  font-weight: 700;
  font-size: 14px;
}

.prize-card--a .prize-card__details dt,
.prize-card--a .prize-card__details strong {
  color: var(--color-accent);
}

.prize-card--b .prize-card__details dt,
.prize-card--b .prize-card__details strong {
  color: var(--color-sky);
}

.prize-card__details dd {
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-navy);
}

.prize-card__details dd strong {
  font-size: 18px;
}

@media (min-width: 768px) {
  .prize-card__details dt,
  .prize-card__details dd {
    font-size: 15px;
  }
  .prize-card__details dd strong {
    font-size: 20px;
  }
}

.prize-card__note {
  display: inline-block;
  margin-top: 4px;
  font-size: 13px;
  font-weight: 400;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .prize-card__note {
    font-size: 14px;
  }
}

.prize-card__cta {
  margin-top: var(--space-lg);
  text-align: center;
}

.prize-card__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  background: transparent;
  border: 2px solid currentColor;
  font-weight: 700;
  transition: var(--transition-base);
}

.prize-card__btn--a {
  color: var(--color-accent);
}

.prize-card__btn--a:hover {
  background: var(--color-accent-pale);
  color: var(--color-accent);
}

.prize-card__btn--b {
  color: var(--color-sky);
}

.prize-card__btn--b:hover {
  background: var(--color-sky-pale);
  color: var(--color-sky);
}

.prize-total {
  margin-top: var(--space-lg);
  text-align: center;
}

.prize-total span {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  background: var(--color-navy);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
}

/* ---------- 選べる10路線 ---------- */

.dest-tabs {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.dest-tabs__group {
  position: relative;
  display: flex;
  width: 100%;
  max-width: 360px;
  padding: 4px;
  border-radius: var(--radius-btn);
  background: var(--color-gray);
}

.dest-tabs__group::before {
  content: "";
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 4px;
  width: calc(50% - 4px);
  border-radius: var(--radius-btn);
  background: var(--color-accent);
  box-shadow: var(--shadow-soft);
  transition: transform 0.4s cubic-bezier(0.65, 0, 0.35, 1), background-color 0.4s ease;
}

#destinations[data-active-filter="b"] .dest-tabs__group::before {
  transform: translateX(100%);
  background: var(--color-sky);
}

.dest-tab {
  position: relative;
  z-index: 1;
  flex: 1;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-navy-soft);
  transition: color 0.4s ease;
}

.dest-tab .dest-tab__note {
  margin-left: 6px;
  font-size: 12px;
  opacity: 0.7;
}

.dest-tab.is-active {
  color: var(--color-white);
}

.dest-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

.dest-panel + .dest-panel {
  margin-top: var(--space-sm);
}

@media (min-width: 640px) {
  .dest-panel--overseas {
    grid-template-columns: repeat(3, 1fr);
  }
  .dest-panel--domestic {
    grid-template-columns: repeat(4, 1fr);
  }
}

.dest-card {
  display: flex;
  flex-direction: row;
  overflow: hidden;
  border: 4px solid transparent;
  border-radius: var(--radius-card);
  background: var(--color-white);
  box-shadow: 0 10px 30px -15px rgba(0, 18, 94, 0.2);
  transition: transform 0.3s ease, opacity 0.3s ease, filter 0.3s ease, border-color 0.3s ease;
}

@media (min-width: 640px) {
  .dest-card {
    display: block;
  }
}

#destinations[data-active-filter="a"] .dest-card[data-region="a"] {
  border-color: var(--color-accent);
}

#destinations[data-active-filter="b"] .dest-card[data-region="b"] {
  border-color: var(--color-sky);
}

.dest-card:hover {
  transform: translateY(-4px);
}

.dest-card.is-dimmed {
  opacity: 0.35;
  filter: grayscale(1) brightness(0.6);
}

.dest-card.is-dimmed:hover {
  transform: none;
}

.dest-card__media {
  position: relative;
  width: 38%;
  flex-shrink: 0;
  display: flex;
  align-items: flex-end;
  padding: var(--space-xs);
  background-color: #4d4d4d;
  background-size: cover;
  background-position: center;
}

@media (min-width: 640px) {
  .dest-card__media {
    width: 100%;
    aspect-ratio: 5 / 4;
    height: auto;
    padding: var(--space-sm);
  }
}

.dest-card__media::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0) 65%);
}

.dest-card__media span {
  position: relative;
  z-index: 1;
  font-family: var(--font-en);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.25);
}

@media (min-width: 640px) {
  .dest-card__media span {
    font-size: 12px;
    letter-spacing: 0.2em;
  }
}

.dest-card__media--placeholder {
  background-color: #e4e6ea;
}

.dest-card__media--placeholder::before {
  display: none;
}

.dest-card__media--placeholder span {
  color: var(--color-navy-soft);
  text-shadow: none;
}

.dest-card__body {
  flex: 1;
  min-width: 0;
  padding: var(--space-xs) var(--space-sm);
}

@media (min-width: 640px) {
  .dest-card__body {
    padding: var(--space-sm) var(--space-md) var(--space-md);
  }
}

.dest-card__body h3 {
  font-family: var(--font-mincho);
  font-size: 16px;
}

@media (min-width: 640px) {
  .dest-card__body h3 {
    font-size: 18px;
  }
}

.dest-card__duration {
  margin-top: 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-accent);
}

.dest-card[data-region="b"] .dest-card__duration {
  color: var(--color-sky);
}

.dest-card__source {
  margin-top: 8px;
  font-size: 11px;
  line-height: 1.6;
  color: var(--color-navy-soft);
}

.dest-card__source a {
  color: var(--color-navy);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.dest-card__source a:hover {
  color: var(--color-sky);
}

.dest-card__highlight {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .dest-card__highlight {
    font-size: 15px;
  }
}

.dest-note {
  margin-top: var(--space-md);
  text-align: center;
  font-size: 13px;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .dest-note {
    font-size: 14px;
  }
}

/* ---------- 応募方法 ---------- */

.steps {
  position: relative;
}

.steps-line {
  position: absolute;
  top: 28px;
  left: 16.6667%;
  right: 16.6667%;
  height: 1px;
  background: rgba(0, 18, 94, 0.15);
  display: none;
}

@media (min-width: 640px) {
  .steps-line {
    display: block;
  }
}

.steps-list {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .steps-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.step-number {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-navy);
  color: var(--color-white);
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 600;
  box-shadow: var(--shadow-soft);
}

.step h3 {
  margin-top: var(--space-sm);
  font-size: 15px;
}

.step p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .step p {
    font-size: 15px;
  }
}

.apply-cta {
  margin-top: var(--space-xl);
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--radius-card);
  background: var(--color-navy);
  box-shadow: var(--shadow-soft);
  text-align: center;
  scroll-margin-top: 90px;
}

@media (min-width: 768px) {
  .apply-cta {
    padding: var(--space-xl) var(--space-xl);
  }
}

.apply-cta h3 {
  font-family: var(--font-mincho);
  font-size: 22px;
  color: var(--color-white);
}

.apply-cta p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-white);
}

@media (min-width: 768px) {
  .apply-cta p {
    font-size: 15px;
  }
}

.apply-cta__buttons {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  max-width: 640px;
  margin: var(--space-md) auto 0;
}

@media (min-width: 640px) {
  .apply-cta__buttons {
    grid-template-columns: repeat(2, 1fr);
  }
}

.apply-cta__btn {
  justify-content: center;
  margin-top: 0;
}

.apply-cta__btn--a {
  background: var(--color-accent);
}

.apply-cta__btn--a:hover {
  background: var(--color-accent-light);
}

.apply-cta__btn--b {
  background: var(--color-sky);
}

.apply-cta__btn--b:hover {
  background: var(--color-sky-light);
}

/* ---------- 特典 ---------- */

.gift-card {
  height: 100%;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.gift-card__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: var(--space-md) var(--space-lg);
  color: var(--color-white);
}

.gift-card__head--a {
  background: var(--color-navy);
}

.gift-card__head--b {
  background: var(--color-navy);
}

.gift-card__icon {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-navy);
  font-size: 15px;
  font-weight: 700;
}

.gift-card__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-white);
}

.gift-card__body {
  padding: var(--space-lg);
}

.gift-card__count {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-navy);
}

@media (min-width: 768px) {
  .gift-card__count {
    font-size: 19px;
  }
}

.gift-card--a .gift-card__count strong {
  color: var(--color-accent);
}

.gift-card--b .gift-card__count strong {
  color: var(--color-accent);
}

.gift-card__divider {
  margin: var(--space-md) 0;
  border: none;
  border-top: 1px dashed rgba(0, 18, 94, 0.2);
}

.gift-card__row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
}

.gift-card__mascot {
  flex: none;
  width: 150px;
  height: auto;
}

.gift-card__mascot--sorayan {
  width: 220px;
}

.gift-card__mascot--novelty {
  width: 210px;
}

@media (max-width: 480px) {
  .gift-card__row {
    flex-direction: column-reverse;
    align-items: center;
    text-align: center;
  }
}

.gift-card__details {
  display: grid;
  gap: var(--space-sm);
}

.gift-card__details dt {
  font-weight: 700;
  font-size: 14px;
}

.gift-card--a .gift-card__details dt {
  color: var(--color-sky);
}

.gift-card--b .gift-card__details dt {
  color: var(--color-sky);
}

.gift-card--a .gift-card__details strong {
  color: var(--color-navy);
}

.gift-card--b .gift-card__details strong {
  color: var(--color-navy);
}

.gift-card__details dd {
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-navy);
}

@media (min-width: 768px) {
  .gift-card__details dt,
  .gift-card__details dd {
    font-size: 15px;
  }
}

.gift-card__feature {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.gift-card__link-btn {
  display: inline-flex;
  align-items: center;
  flex: none;
  padding: 9px 20px;
  border-radius: var(--radius-btn);
  background: transparent;
  border: 2px solid var(--color-navy);
  color: var(--color-navy);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  transition: var(--transition-base);
}

.gift-card__link-btn:hover {
  background: var(--color-gray);
}

.gift-note {
  margin-top: var(--space-md);
  text-align: center;
  font-size: 13px;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .gift-note {
    font-size: 14px;
  }
}

/* ---------- 応募規約アコーディオン ---------- */

.accordion {
  max-width: 760px;
  margin: var(--space-lg) auto 0;
  padding: 0 var(--space-md);
  border-radius: var(--radius-card);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.accordion--nested {
  max-width: none;
  margin: 0;
  padding: 0 0 var(--space-sm);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.accordion--nested .accordion-trigger {
  padding-left: var(--space-md);
  font-size: 13px;
}

.accordion--nested .faq-answer {
  padding-left: var(--space-md);
}

.accordion-item {
  border-bottom: 1px solid rgba(0, 18, 94, 0.1);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  width: 100%;
  padding: var(--space-sm) 0;
  text-align: left;
  font-weight: 700;
  font-size: 14px;
}

.accordion-icon {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(0, 18, 94, 0.2);
  font-size: 15px;
  transition: transform 0.3s ease;
}

.accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(45deg);
}

.accordion-panel {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  overflow: hidden;
  transition: grid-template-rows 0.3s ease, opacity 0.3s ease;
}

.accordion-panel.is-open {
  grid-template-rows: 1fr;
  opacity: 1;
}

.accordion-panel__inner {
  min-height: 0;
}

.faq-mark {
  font-weight: 700;
  color: var(--color-accent);
  margin-right: 4px;
}

.faq-mark--a {
  color: var(--color-navy);
}

.faq-answer {
  padding-bottom: var(--space-sm);
  color: var(--color-navy);
  line-height: 1.8;
}

.accordion-panel ul {
  padding-bottom: var(--space-sm);
  display: grid;
  gap: 8px;
}

.accordion-subhead {
  padding-bottom: 8px;
  font-weight: 700;
  font-size: 14px;
  color: var(--color-navy);
}

@media (min-width: 768px) {
  .accordion-subhead {
    font-size: 15px;
  }
}

.faq-coming-soon {
  padding: 40px 0;
  text-align: center;
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-navy-soft);
}

.accordion-panel li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .accordion-panel li {
    font-size: 15px;
  }
}

.accordion-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-sky);
}

.organizers {
  max-width: 760px;
  margin: var(--space-md) auto 0;
  text-align: center;
  font-size: 12px;
  line-height: 1.8;
  color: var(--color-navy-soft);
}

/* ---------- 背景色ユーティリティ ---------- */

.bg-white {
  background: var(--color-white);
}

.bg-pale {
  background: var(--color-sky-pale);
}

.bg-gray {
  background: var(--color-gray);
}

/* ---------- スクロールリビール ---------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- 行程表ページ（schedule-a / schedule-b） ---------- */

.schedule-back-btn {
  flex: none;
  padding: 10px 22px;
}

.schedule-back-btn__short {
  display: none;
}

@media (max-width: 480px) {
  .schedule-back-btn {
    padding: 8px 14px;
    font-size: 12px;
  }
  .schedule-back-btn__full {
    display: none;
  }
  .schedule-back-btn__short {
    display: inline;
  }
}

.schedule-hero {
  padding: 148px 0 var(--space-xl);
  background: var(--color-white);
  text-align: center;
}

.schedule-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: var(--radius-btn);
  color: var(--color-white);
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.schedule-hero__badge--a {
  background: var(--color-accent);
}

.schedule-hero__badge--b {
  background: var(--color-sky);
}

.schedule-hero__badge--gift {
  background: var(--color-navy);
}

.schedule-hero h1 {
  margin-top: var(--space-md);
  font-family: var(--font-mincho);
  font-size: 26px;
}

@media (min-width: 768px) {
  .schedule-hero h1 {
    font-size: 32px;
  }
}

.schedule-hero__lead {
  margin-top: var(--space-md);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .schedule-hero__lead {
    font-size: 15px;
  }
}

.schedule-hero__lead--left {
  text-align: left;
}

.schedule-notice {
  max-width: 800px;
  margin: var(--space-lg) auto 0;
  padding: var(--space-lg);
  border-radius: var(--radius-card);
  background: var(--color-sky-pale);
  text-align: left;
}

.schedule-notice h2 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  font-family: var(--font-mincho);
  font-size: 18px;
}

.schedule-notice__must-read {
  font-family: var(--font-mincho);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-accent);
}

.schedule-notice ul {
  margin-top: var(--space-sm);
  display: grid;
  gap: 8px;
}

.schedule-notice li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-navy-soft);
}

.schedule-notice li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-sky);
}

@media (min-width: 768px) {
  .schedule-notice li {
    font-size: 15px;
  }
}

.itinerary-card {
  text-align: left;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
  margin-top: var(--space-lg);
}

.itinerary-card__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: var(--space-md) var(--space-lg);
  color: var(--color-white);
}

.itinerary-card__head--a {
  background: var(--color-accent);
}

.itinerary-card__head--b {
  background: var(--color-sky);
}

.itinerary-card__no {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 700;
  opacity: 0.85;
}

.itinerary-card__title {
  font-family: var(--font-mincho);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
}

.itinerary-card__tag {
  padding: 4px 14px;
  border-radius: var(--radius-btn);
  background: rgba(255, 255, 255, 0.25);
  font-size: 14px;
  font-weight: 600;
}

.itinerary-card__body {
  padding: var(--space-lg);
}

.itinerary-table-wrap {
  overflow-x: auto;
}

.itinerary-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 14px;
}

@media (min-width: 768px) {
  .itinerary-table {
    font-size: 15px;
  }
}

.itinerary-table th,
.itinerary-table td {
  border: 1px solid rgba(0, 18, 94, 0.12);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.itinerary-table th {
  background: var(--color-gray);
  color: var(--color-navy);
  font-weight: 700;
  white-space: nowrap;
}

.itinerary-table td {
  color: var(--color-navy-soft);
}

.itinerary-hotels {
  margin-top: var(--space-md);
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .itinerary-hotels {
    font-size: 15px;
  }
}

.itinerary-hotels dt {
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.itinerary-note {
  margin-top: var(--space-sm);
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .itinerary-note {
    font-size: 14px;
  }
}

.itinerary-card__head--gift {
  background: var(--color-navy);
}

.gift-grid {
  margin-top: var(--space-lg);
  display: grid;
  gap: var(--space-lg);
}

.gift-grid .itinerary-card {
  margin-top: 0;
}

@media (min-width: 1024px) {
  .gift-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.gift-item__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .gift-item__body {
    flex-direction: row;
    align-items: flex-start;
  }
}

.gift-item__photo {
  flex: none;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-card);
  object-fit: cover;
}

@media (min-width: 640px) {
  .gift-item__photo {
    width: 220px;
  }
}

@media (min-width: 1024px) {
  .gift-item__body {
    flex-direction: column;
  }
  .gift-item__photo {
    width: 100%;
  }
}

.gift-item__info {
  flex: 1;
  min-width: 0;
}

.gift-item__name {
  font-family: var(--font-mincho);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-accent);
}

@media (min-width: 768px) {
  .gift-item__name {
    font-size: 17px;
  }
}

.gift-item__desc {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .gift-item__desc {
    font-size: 15px;
  }
}

.gift-item__spec {
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px dashed rgba(0, 18, 94, 0.15);
  display: grid;
  gap: 6px;
  font-size: 13px;
  line-height: 1.7;
}

.gift-item__spec dt {
  display: inline;
  font-weight: 700;
  color: var(--color-navy);
}

.gift-item__spec dd {
  display: inline;
  color: var(--color-navy-soft);
}

.gift-item__spec dt::after {
  content: "：";
}

.gift-item__spec div + div {
  margin-top: 0;
}

/* ---------- 404ページ ---------- */

.error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: 148px 0 var(--space-xl);
  background: var(--color-white);
  text-align: center;
}

.error-page__inner {
  margin: 0 auto;
}

.error-page__row {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

@media (min-width: 640px) {
  .error-page__row {
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    text-align: left;
  }
}

.error-page__mascot {
  display: block;
  flex: none;
  width: 150px;
  height: auto;
}

@media (min-width: 768px) {
  .error-page__mascot {
    width: 190px;
  }
}

.error-page__code {
  font-family: var(--font-en);
  font-size: 56px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-accent);
}

@media (min-width: 768px) {
  .error-page__code {
    font-size: 72px;
  }
}

.error-page__title {
  margin-top: var(--space-xs);
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-navy);
}

.error-page__lead {
  margin-top: var(--space-md);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-navy);
}

@media (min-width: 768px) {
  .error-page__lead {
    font-size: 24px;
  }
}

.error-page__desc {
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-navy-soft);
}

@media (min-width: 768px) {
  .error-page__desc {
    font-size: 15px;
  }
}

.error-page__back {
  margin-top: var(--space-lg);
}

@media (max-width: 767px) {
  .error-page {
    min-height: 0;
    padding: 104px 0 var(--space-md);
  }

  .error-page__row {
    margin-top: var(--space-sm);
    gap: 4px;
  }

  .error-page__mascot {
    width: 84px;
  }

  .error-page__code {
    font-size: 36px;
  }

  .error-page__lead {
    margin-top: 6px;
    font-size: 16px;
  }

  .error-page__title {
    margin-top: 2px;
    font-size: 13px;
  }

  .error-page__desc {
    font-size: 12px;
    line-height: 1.6;
  }

  .error-page__back {
    margin-top: var(--space-sm);
  }

  .error-page__back .btn-primary {
    padding: 10px 20px;
    font-size: 13px;
  }
}