body.page-flex {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

body.page-flex .main {
  flex: 1;
}

.header > .container {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.page-hero {
  padding: 72px 0 54px;
  background: #f3fafc;
  text-align: center;
}

.page-hero h1 {
  margin: 0;
  color: #263238;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.45;
  letter-spacing: 0;
}

.about-intro-section {
  padding: 54px 0 34px;
}

.about-intro-text {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.06rem;
  line-height: 2.1;
  text-align: center;
}

.about-video-section {
  padding: 12px 0 76px;
}

.about-video-container {
  position: relative;
  width: min(920px, 100%);
  aspect-ratio: 16 / 9;
  margin: 0 auto;
  overflow: hidden;
  background: #000;
  border-radius: 6px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.16);
}

.about-video-container video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.video-replay-overlay {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.52);
}

.video-replay-overlay.is-visible {
  display: flex;
}

.replay-btn,
.video-control-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.replay-btn {
  min-height: 52px;
  padding: 12px 22px;
  background: var(--color-orange);
  border-radius: 6px;
}

.video-controls {
  position: absolute;
  right: 12px;
  bottom: 12px;
  left: 12px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  pointer-events: none;
}

.video-control-btn {
  min-height: 42px;
  padding: 8px 13px;
  background: rgba(0, 0, 0, 0.72);
  border-radius: 4px;
  pointer-events: auto;
}

.video-control-btn.icon-only {
  width: 42px;
  padding: 0;
}

.mvv-section {
  padding: 72px 20px;
  background: #f7fbfc;
}

.mvv-container {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: min(1100px, 100%);
  margin: 0 auto;
  gap: 22px;
}

.mvv-block {
  min-height: 190px;
  padding: 38px 26px;
  background: #fff;
  border-top: 4px solid var(--color-blue);
  box-shadow: 0 10px 30px rgba(37, 74, 88, 0.08);
  text-align: center;
}

.mvv-en {
  display: block;
  margin-bottom: 18px;
  color: var(--color-blue);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.mvv-jp {
  margin: 0;
  color: #263238;
  font-size: 1.22rem;
  line-height: 1.75;
  letter-spacing: 0;
}

.about-section {
  padding: 78px 0;
}

.about-section-alt {
  background: #f7f8f8;
}

.about-section-white {
  background: #fff;
}

.about-title {
  margin: 0 0 42px;
  color: #263238;
  font-size: clamp(1.8rem, 3vw, 2.35rem);
  line-height: 1.4;
  text-align: center;
  letter-spacing: 0;
}

.about-body {
  max-width: 820px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 2.05;
}

.about-body p {
  margin: 0 0 1.4em;
}

.message-block {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  max-width: 980px;
  margin: 0 auto;
  align-items: start;
  gap: 48px;
}

.message-img {
  width: min(280px, 100%);
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 50%;
}

.message-block .about-body {
  max-width: none;
  margin: 0;
}

.message-signature {
  grid-column: 2;
  margin-top: -12px;
  text-align: right;
}

.message-signature p {
  margin: 0.2em 0;
}

.text-link-arrow,
.text-link-primary {
  color: var(--color-blue);
  font-weight: 700;
}

.profile-table {
  width: min(920px, 100%);
  margin: 0 auto;
  border-collapse: collapse;
  background: #fff;
}

.profile-table th,
.profile-table td {
  padding: 20px 24px;
  border-bottom: 1px solid #dfe5e7;
  vertical-align: top;
  text-align: left;
}

.profile-table th {
  width: 190px;
  background: #eef7f9;
  color: #263238;
  font-weight: 800;
}

.profile-table p {
  margin-top: 0;
}

.profile-activities {
  margin: 12px 0 0;
  padding-left: 1.4em;
}

.logo-img-sm {
  width: min(220px, 100%);
}

.footer-related-section {
  margin: 0 0 32px;
}

.footer-related-title {
  margin: 0 0 14px;
  color: var(--color-muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.footer-related {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-related-item {
  color: var(--color-muted);
  font-size: 0.78rem;
  text-decoration: none;
}

.footer-related-item {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.footer-related-item img {
  width: auto;
  max-width: 170px;
  max-height: 48px;
  object-fit: contain;
}

.footer-sns {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.sns-circle {
  display: grid;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  place-items: center;
  color: #333;
  background: #fff;
  border: 1px solid #d9e1e3;
  border-radius: 50%;
  transition: color 0.2s, border-color 0.2s;
}

.sns-circle:hover,
.sns-circle:focus-visible {
  color: var(--color-blue);
  border-color: var(--color-blue);
}

.sns-circle svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 900px) {
  .header > .container {
    min-height: 66px;
  }

  .mvv-container {
    grid-template-columns: 1fr;
    max-width: 680px;
  }

  .mvv-block {
    min-height: 0;
  }

  .message-block {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 30px;
  }
}

@media (max-width: 680px) {
  .header > .container {
    width: calc(100% - 32px);
  }

  .page-hero {
    padding: 48px 0 38px;
  }

  .page-hero h1 {
    font-size: 1.8rem;
  }

  .about-intro-section {
    padding: 40px 0 26px;
  }

  .about-intro-text {
    font-size: 0.96rem;
    line-height: 1.9;
    text-align: left;
  }

  .about-video-section {
    padding-bottom: 52px;
  }

  .about-video-container {
    border-radius: 0;
  }

  .mute-text {
    display: none;
  }

  .mvv-section,
  .about-section {
    padding: 54px 0;
  }

  .mvv-container {
    width: calc(100% - 32px);
    gap: 14px;
  }

  .mvv-block {
    padding: 28px 20px;
  }

  .mvv-jp {
    font-size: 1.08rem;
  }

  .about-title {
    margin-bottom: 30px;
    font-size: 1.65rem;
  }

  .about-body {
    font-size: 0.95rem;
    line-height: 1.9;
  }

  .about-body br,
  .about-intro-text br {
    display: none;
  }

  .message-block {
    display: block;
  }

  .message-img {
    width: min(240px, 72%);
    margin: 0 auto 30px;
  }

  .footer-related {
    justify-content: center;
  }

  .footer-related-section {
    text-align: center;
  }

  .footer-related-item {
    flex-direction: column;
  }

  .footer-sns {
    justify-content: center;
    margin-top: 8px;
  }

  .message-signature {
    margin-top: 24px;
  }

  .profile-table,
  .profile-table tbody,
  .profile-table tr,
  .profile-table th,
  .profile-table td {
    display: block;
    width: 100%;
  }

  .profile-table tr {
    margin-bottom: 14px;
    border: 1px solid #dfe5e7;
  }

  .profile-table th,
  .profile-table td {
    padding: 14px 16px;
    border: 0;
  }
}