/* ============================================
   STARFRUIT — イベント会社サイト
   配色: 白 × ネイビー / モダン・洗練
   ============================================ */

:root {
  --navy: #0f1f3d;
  --navy-soft: #1b3a6b;
  --navy-deep: #0a1730;
  --white: #ffffff;
  --off-white: #f6f8fc;
  --text: #1a2233;
  --muted: #5b6678;
  --line: #e3e8f0;

  --maxw: 1080px;
  --radius: 16px;
  --shadow: 0 18px 40px rgba(15, 31, 61, 0.1);

  --font-head: "Montserrat", "Noto Sans JP", system-ui, sans-serif;
  --font-body: "Noto Sans JP", system-ui, sans-serif;
}

/* ----- リセット / ベース ----- */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ----- ボタン共通 ----- */
.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.15s ease, background 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn-primary:hover {
  background: var(--navy-soft);
}

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

.btn-invert:hover {
  background: var(--off-white);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.05rem;
}

/* ----- ヘッダー ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.04em;
  color: var(--navy);
}

.logo img {
  display: block;
  height: 40px;
  width: auto;
  border-radius: 6px;
}

.logo .logo-wordmark {
  height: 18px;
  border-radius: 0;
}

.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-list a {
  color: var(--navy);
  transition: color 0.2s ease;
}

.nav-list a:hover {
  color: var(--navy-soft);
}

.nav-icon {
  display: flex;
  align-items: center;
}

.nav-cta {
  background: var(--navy);
  color: var(--white) !important;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
}

.nav-cta:hover {
  background: var(--navy-soft);
}

/* ----- ヒーロー（1枚写真） ----- */
.hero {
  position: relative;
  height: 100vh;
  height: 100svh;
  min-height: 560px;
  display: flex;
  align-items: flex-start;
  color: var(--white);
  overflow: hidden;
  background: var(--navy-deep);
}

.hero-photo-img {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(10, 23, 48, 0.6) 0%,
    rgba(10, 23, 48, 0.25) 45%,
    rgba(10, 23, 48, 0.1) 100%
  );
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
  padding-top: 7.5rem;
}

/* サブページ用のコンパクトなヒーロー（紺色の面積を抑える） */
.hero.hero--compact {
  height: auto;
  min-height: 0;
  align-items: center;
  padding: 6rem 0;
}

.hero--compact .hero-inner {
  padding-bottom: 0;
}

.hero-eyebrow {
  font-family: var(--font-head);
  letter-spacing: 0.22em;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.65);
  margin: 0 0 1rem;
}

.hero-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  line-height: 1.25;
  margin: 0 0 1rem;
  text-shadow: 0 2px 16px rgba(10, 23, 48, 0.4);
}

.hero-lead {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
  max-width: 34rem;
  text-shadow: 0 2px 16px rgba(10, 23, 48, 0.4);
}

/* トップページのヒーロー見出しは1行固定 */
#hero .hero-title {
  font-size: clamp(1.2rem, 6vw, 3.6rem);
  white-space: nowrap;
}

/* ----- セクション共通 ----- */
.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--off-white);
}

.section-eyebrow {
  font-family: var(--font-head);
  letter-spacing: 0.2em;
  font-size: 0.78rem;
  color: var(--navy-soft);
  margin: 0 0 0.5rem;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  color: var(--navy);
  margin: 0 0 2.5rem;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.section-title-row .section-title {
  margin-bottom: 0;
}

.section-lead {
  color: var(--muted);
  margin: -1.5rem 0 2.5rem;
  max-width: 48rem;
}

/* ----- ビジョン（サービス紹介ページ） ----- */
.vision-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  line-height: 1.6;
  color: var(--navy);
  margin: 0 0 2.5rem;
}

.vision-body {
  display: grid;
  gap: 1.5rem;
  max-width: 760px;
}

.vision-body p {
  margin: 0;
  font-size: 1.05rem;
  color: var(--muted);
}

.vision-body p.vision-en,
.report-card p.vision-en {
  font-style: italic;
  font-size: 0.85rem;
  color: var(--muted);
}

.report-card p:has(+ .vision-en) {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

/* ----- 特徴カード（サービス紹介ページ） ----- */
.feature-card h3 {
  margin: 0;
  font-size: 1.15rem;
  color: var(--navy);
}

.feature-divider {
  border: none;
  border-top: 1px solid var(--line);
  margin: 1.1rem 0 1.25rem;
}

.feature-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.92rem;
}

/* ----- イベント実績 ----- */
.event-record {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--line);
}

.event-record:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.event-record:first-of-type {
  padding-top: 0;
}

.event-record-date {
  font-family: var(--font-head);
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  color: var(--navy-soft);
  margin: 0 0 0.4rem;
}

.event-record-title {
  font-family: var(--font-head);
  font-size: 1.6rem;
  color: var(--navy);
  margin: 0 0 1rem;
}

.event-record-desc {
  color: var(--muted);
  max-width: 760px;
  margin: 0 0 1.75rem;
}

.partner-group {
  margin-bottom: 1.5rem;
}

.partner-group:last-child {
  margin-bottom: 0;
}

.partner-label {
  font-family: var(--font-head);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

.partner-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.partner-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  background: var(--off-white);
  border: 1px solid var(--line);
  color: var(--navy);
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.01em;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.partner-chip:hover {
  transform: translateY(-2px);
  border-color: var(--navy-soft);
  box-shadow: var(--shadow);
}

/* ----- プラン詳細（サブページ） ----- */
.plan-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.plan-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.plan-table th,
.plan-table td {
  text-align: left;
  padding: 0.9rem 1.25rem;
}

.plan-table thead th {
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.plan-table tbody tr:not(:last-child) td {
  border-bottom: 1px solid var(--line);
}

.plan-table tbody td:first-child {
  font-weight: 700;
  color: var(--navy);
}

.plan-table tbody td:last-child {
  color: var(--muted);
}

.plan-subhead {
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--navy);
  margin: 2.5rem 0 1rem;
}

.plan-subhead:first-of-type {
  margin-top: 0;
}

.plan-note {
  color: var(--muted);
  margin: 0 0 1rem;
}

/* ----- 会社概要 ----- */
.about-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-more {
  margin-top: 2.5rem;
}

.about-more--row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn-note {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 2.9rem;
  padding: 0 1.5rem;
  border-radius: 999px;
  background: var(--white);
  border: 2px solid var(--line);
  transition: transform 0.15s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.btn-note:hover {
  transform: translateY(-2px);
  border-color: var(--navy-soft);
  box-shadow: var(--shadow);
}

.btn-note img {
  height: 0.95rem;
  width: auto;
  display: block;
}

.about-facts {
  margin: 0;
  display: grid;
  gap: 1rem;
}

.fact {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.fact dt {
  font-weight: 700;
  color: var(--navy);
}

.fact dd {
  margin: 0;
  color: var(--muted);
}

/* ----- メンバー紹介 ----- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.team-card {
  text-align: center;
}

.team-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-photo--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--off-white);
  color: var(--navy-soft);
  border: 1px solid var(--line);
}

.team-name {
  font-family: var(--font-head);
  font-size: 1.1rem;
  margin: 0 0 0.25rem;
  color: var(--navy);
}

.team-role {
  color: var(--muted);
  margin: 0;
  font-size: 0.9rem;
}

/* ----- 活動レポート ----- */
.report-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.report-grid.two-col {
  grid-template-columns: repeat(2, 1fr);
}

.report-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.report-card--media {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.report-card-img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}

.report-card-body {
  padding: 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.report-card-body .btn-primary {
  margin-top: auto;
  align-self: flex-start;
}

.report-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.report-card--blue {
  background: #eaf3fc;
  border-color: #cfe3f7;
}

.report-card--orange {
  background: #fdf1e6;
  border-color: #f6dfc4;
}

.report-card--green {
  background: #eaf7ee;
  border-color: #cdeada;
}

.report-card--purple {
  background: #f3eefb;
  border-color: #e1d5f5;
}

.report-date {
  font-family: var(--font-head);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--navy-soft);
  margin: 0 0 0.75rem;
}

.report-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--navy);
}

.report-card p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.report-card p:has(+ .org-tags),
.report-card p:has(+ .btn) {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.org-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.org-tag {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--navy-soft);
  background: var(--off-white);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
}

.org-note {
  max-width: 620px;
  margin: 3rem 0 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.org-note p {
  margin: 0;
}

/* ----- ポータルサイトの使い方・活動テーマ ----- */
.portal-guide,
.theme-intro {
  max-width: 760px;
  color: var(--muted);
  font-size: 0.95rem;
}

.portal-guide {
  background: var(--off-white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-bottom: 3rem;
}

.portal-guide p,
.theme-intro p {
  margin: 0 0 1rem;
}

.portal-guide p:last-child,
.theme-intro p:last-child {
  margin-bottom: 0;
}

.portal-guide a {
  color: var(--navy-soft);
  font-weight: 500;
  text-decoration: underline;
}

.portal-guide-title {
  margin: 0 0 1rem;
  font-size: 1.15rem;
  color: var(--navy);
}

.portal-steps {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.portal-steps li {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  color: var(--text);
}

.portal-step-num {
  flex-shrink: 0;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--white);
  background: var(--navy);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
}

.portal-note {
  font-size: 0.85rem;
}

/* ----- 活動テーマの絞り込み ----- */
.org-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  background: var(--off-white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.org-filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.org-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--navy);
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s;
}

.org-filter-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.org-filter-btn.is-active {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}

.org-filter-btn:focus-visible {
  outline: 2px solid var(--navy-soft);
  outline-offset: 2px;
}

.org-filter-dot {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.org-filter-btn--blue .org-filter-dot { background: #4a90d9; }
.org-filter-btn--green .org-filter-dot { background: #3fa765; }
.org-filter-btn--orange .org-filter-dot { background: #e8913a; }
.org-filter-btn--purple .org-filter-dot { background: #8a63d2; }

.org-filter-btn.is-active .org-filter-dot {
  box-shadow: 0 0 0 2px var(--white);
}

.org-filter-count {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

.org-filter-count strong {
  margin-right: 0.35rem;
  font-family: var(--font-head);
  font-size: 1.8rem;
  line-height: 1;
  color: var(--navy);
}

.org-filter-count strong:empty {
  display: none;
}

.org-group {
  margin-top: 3.5rem;
}

.org-group[hidden] {
  display: none;
}

.org-group:not([hidden]) {
  animation: org-fade-in 0.35s ease;
}

@keyframes org-fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .org-group:not([hidden]) {
    animation: none;
  }
}

.org-group-head {
  max-width: 760px;
  margin-bottom: 1.5rem;
}

.org-group-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.75rem;
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--navy);
}

.org-group-head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.org-group-dot {
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.org-group--blue .org-group-dot {
  background: #4a90d9;
}

.org-group--green .org-group-dot {
  background: #3fa765;
}

.org-group--orange .org-group-dot {
  background: #e8913a;
}

.org-group--purple .org-group-dot {
  background: #8a63d2;
}

/* ----- カルーセル（Event Portal Site） ----- */
.carousel {
  position: relative;
}

.carousel-track {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.carousel-track::-webkit-scrollbar {
  display: none;
}

.carousel-item {
  flex: 0 0 calc((100% - 2 * 1.5rem) / 3);
  scroll-snap-align: start;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--navy);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  transition: background 0.2s ease, color 0.2s ease;
}

.carousel-arrow:hover {
  background: var(--navy);
  color: var(--white);
}

.carousel-arrow--prev {
  left: -10px;
}

.carousel-arrow--next {
  right: -10px;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: var(--line);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.carousel-dot:hover {
  background: var(--navy-soft);
}

.carousel-dot.is-active {
  background: var(--navy);
  transform: scale(1.2);
}

/* ----- イベント詳細ページ ----- */
.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  color: var(--navy-soft);
  font-weight: 500;
}

.back-link:hover {
  text-decoration: underline;
}

/* ----- お問い合わせ ----- */
.contact-lead {
  color: var(--muted);
  margin: 0 0 2rem;
}

.form-success {
  max-width: 560px;
  background: var(--off-white);
  border-radius: var(--radius);
  padding: 2rem;
  color: var(--muted);
}

.form-success p {
  margin: 0;
}

.contact-form {
  max-width: 560px;
  display: grid;
  gap: 1.25rem;
}

.field {
  display: grid;
  gap: 0.4rem;
}

.field label {
  font-weight: 500;
  color: var(--navy);
  font-size: 0.95rem;
}

.required {
  color: var(--navy-soft);
  font-weight: 400;
}

.field input,
.field select,
.field textarea {
  font-family: inherit;
  font-size: 1rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--off-white);
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--navy-soft);
  box-shadow: 0 0 0 3px rgba(27, 58, 107, 0.15);
}

.field-checkbox label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 400;
  color: var(--text);
}

.field-checkbox input {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--navy);
}

.contact-form .btn {
  justify-self: start;
}

/* ----- フッター ----- */
.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.85);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo-footer {
  color: var(--white);
}

/* ============================================
   レスポンシブ（スマホ / タブレット対応）
   ============================================ */
@media (max-width: 860px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .report-grid {
    grid-template-columns: 1fr 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr 1fr;
  }

  .carousel-item {
    flex-basis: calc((100% - 1.5rem) / 2);
  }
}

@media (max-width: 640px) {
  .nav-list {
    gap: 1rem;
    font-size: 0.85rem;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .carousel-item {
    flex-basis: 100%;
  }

  .nav-list li:not(:last-child) {
    display: none; /* 骨組み段階: スマホでは参加ボタンのみ表示 */
  }

  .hero {
    min-height: 480px;
    align-items: center;
    text-align: center;
  }

  .hero-inner {
    padding-top: 0;
  }

  .hero-lead {
    margin-left: auto;
    margin-right: auto;
  }

  .section {
    padding: 3.5rem 0;
  }

  .report-grid,
  .report-grid.two-col {
    grid-template-columns: 1fr;
  }

  .fact {
    grid-template-columns: 80px 1fr;
  }
}