.page-about {
  --about-shadow: 8px 8px 0 rgba(0, 0, 0, 0.2);
  background: var(--color-primary);
  color: var(--color-text);
}

.page-about h2 {
  font-family: var(--font-headline);
  font-size: 1.6rem;
  line-height: 1.2;
  margin: 12px 0 18px;
  letter-spacing: 0.02em;
}

.page-about h2::after {
  content: "";
  display: block;
  width: 48px;
  height: 5px;
  background: var(--color-accent-green);
  margin-top: 10px;
}

.page-about .fb-breadcrumb {
  margin-bottom: 28px;
  font-size: 0.85rem;
}

.page-about__hero {
  position: relative;
  padding: 40px 0 56px;
  background:
    linear-gradient(135deg, rgba(57, 255, 20, 0.06) 0%, transparent 40%),
    var(--color-primary);
  border-bottom: 3px solid var(--color-border);
  overflow: hidden;
}

.page-about__hero::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -40px;
  width: 220px;
  height: 220px;
  background: var(--color-secondary);
  transform: rotate(12deg);
  border: 2px solid var(--color-border);
  z-index: 0;
  pointer-events: none;
}

.page-about__hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-about__hero-tag {
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-about__hero-est {
  background: var(--color-accent-orange);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  padding: 8px 16px;
  clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
  letter-spacing: 0.08em;
}

.page-about__hero-city {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--color-text-subtle);
}

.page-about__hero-main h1 {
  font-family: var(--font-headline);
  font-size: 2.1rem;
  line-height: 1.16;
  margin: 16px 0 20px;
  letter-spacing: 0.01em;
}

.page-about__hero-desc {
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--color-text-subtle);
  max-width: 56ch;
  margin-bottom: 28px;
}

.page-about__hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.page-about__origin {
  background: var(--color-light);
  color: var(--color-ink);
  padding: 56px 0 64px;
}

.page-about__origin .fb-section__label {
  color: var(--color-ink);
}

.page-about__origin h2 {
  color: var(--color-ink);
}

.page-about__origin h2::after {
  background: var(--color-accent-orange);
}

.page-about__origin-grid {
  display: grid;
  gap: 32px;
}

.page-about__origin-text p {
  color: var(--color-ink-soft);
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 0.98rem;
}

.page-about__origin-quote {
  border-left: 6px solid var(--color-accent-orange);
  padding: 16px 20px;
  background: #FFFFFF;
  font-family: var(--font-headline);
  font-size: 1.02rem;
  color: var(--color-ink);
  margin: 24px 0 0;
}

.page-about__origin-figure {
  margin: 0;
  background: var(--color-primary);
  padding: 16px 16px 12px;
  box-shadow: var(--about-shadow);
  border: 2px solid var(--color-ink);
}

.page-about__origin-figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-about__origin-figure figcaption {
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  padding-top: 10px;
  font-family: var(--font-mono);
}

.page-about__timeline {
  background: var(--color-primary);
  padding: 56px 0 64px;
}

.page-about__timeline-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 28px;
}

.page-about__timeline-head h2 {
  color: var(--color-text);
}

.page-about__timeline-hint {
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  font-family: var(--font-mono);
  white-space: nowrap;
  padding-bottom: 8px;
}

.page-about__timeline-scroll {
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 16px;
  cursor: grab;
  scrollbar-width: thin;
  scrollbar-color: var(--color-accent-orange) var(--color-secondary);
}

.page-about__timeline-scroll::-webkit-scrollbar {
  height: 8px;
}

.page-about__timeline-scroll::-webkit-scrollbar-track {
  background: var(--color-secondary);
}

.page-about__timeline-scroll::-webkit-scrollbar-thumb {
  background: var(--color-accent-orange);
}

.page-about__timeline-track {
  display: grid;
  grid-template-columns: repeat(8, minmax(240px, 320px));
  gap: 20px;
  width: max-content;
  padding-top: 80px;
  position: relative;
}

.page-about__timeline-line {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  pointer-events: none;
}

.page-about__milestone {
  scroll-snap-align: start;
  background: var(--color-secondary);
  border: 2px solid var(--color-border);
  padding: 24px;
  position: relative;
  transition: border-color 0.2s;
}

.page-about__milestone::before {
  content: "";
  position: absolute;
  top: -48px;
  left: 28px;
  width: 16px;
  height: 16px;
  background: var(--color-accent-orange);
  border: 4px solid var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-accent-orange);
  border-radius: 50%;
}

.page-about__milestone:hover,
.page-about__milestone:focus-within {
  border-color: var(--color-accent-green);
}

.page-about__milestone-year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent-orange);
  margin-bottom: 8px;
  border-bottom: 2px dashed var(--color-border);
  padding-bottom: 6px;
}

.page-about__milestone h3 {
  font-family: var(--font-headline);
  font-size: 1.08rem;
  color: var(--color-text);
  margin: 8px 0 10px;
}

.page-about__milestone p {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--color-text-subtle);
}

.page-about__team {
  background: var(--color-secondary);
  padding: 56px 0 64px;
}

.page-about__team-head {
  max-width: 640px;
  margin-bottom: 32px;
}

.page-about__team-head h2 {
  color: var(--color-text);
  margin-top: 12px;
}

.page-about__team-head > p:last-child {
  color: var(--color-text-subtle);
  font-size: 1.02rem;
  line-height: 1.7;
}

.page-about__team-grid {
  display: grid;
  gap: 32px;
}

.page-about__team-roles {
  display: grid;
  gap: 12px;
}

.page-about__role {
  display: flex;
  gap: 16px;
  background: var(--color-primary);
  border: 1px solid var(--color-border);
  padding: 20px;
  transition: border-color 0.2s;
}

.page-about__role:hover {
  border-color: var(--color-accent-green);
}

.page-about__role-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent-orange);
  background: rgba(255, 107, 0, 0.08);
  border: 1px solid rgba(255, 107, 0, 0.3);
  padding: 4px 8px;
  border-radius: 2px;
  height: fit-content;
  flex-shrink: 0;
}

.page-about__role-body h3 {
  color: var(--color-text);
  font-family: var(--font-headline);
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.page-about__role-body p {
  color: var(--color-text-subtle);
  font-size: 0.95rem;
  line-height: 1.65;
}

.page-about__team-figure {
  margin: 0;
  border: 3px solid var(--color-accent-green);
  padding: 10px;
  background: var(--color-primary);
  box-shadow: 8px 8px 0 rgba(57, 255, 20, 0.12);
}

.page-about__team-figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-about__team-figure figcaption {
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  font-family: var(--font-mono);
  padding-top: 10px;
}

.page-about__trust {
  background: var(--color-light);
  color: var(--color-ink);
  padding: 56px 0 64px;
}

.page-about__trust .fb-section__label {
  color: var(--color-ink);
}

.page-about__trust h2 {
  color: var(--color-ink);
}

.page-about__trust h2::after {
  background: var(--color-accent-orange);
}

.page-about__trust-main > p:last-child {
  color: var(--color-ink-soft);
  font-size: 0.98rem;
  line-height: 1.7;
}

.page-about__trust-grid {
  display: grid;
  gap: 32px;
}

.page-about__cert-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.page-about__cert {
  background: #FFFFFF;
  border: 2px solid var(--color-ink);
  box-shadow: 4px 4px 0 var(--color-border);
  transition: box-shadow 0.2s;
}

.page-about__cert[open] {
  box-shadow: 2px 2px 0 var(--color-border);
}

.page-about__cert summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  font-weight: 600;
  flex-wrap: wrap;
}

.page-about__cert summary::-webkit-details-marker {
  display: none;
}

.page-about__cert-key {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  background: var(--color-primary);
  color: var(--color-accent-green);
  padding: 4px 8px;
  flex-shrink: 0;
}

.page-about__cert-title {
  color: var(--color-ink);
  font-size: 0.98rem;
}

.page-about__cert-detail {
  padding: 0 18px 18px 76px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-ink-soft);
  margin: 0;
}

.page-about__trust-figure {
  margin: 0;
  background: var(--color-primary);
  padding: 20px;
  border: 3px solid var(--color-accent-orange);
  box-shadow: 8px 8px 0 rgba(255, 107, 0, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-about__trust-figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  clip-path: polygon(14% 0, 100% 0, 86% 100%, 0 100%);
}

.page-about__promise {
  background: var(--color-primary);
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}

.page-about__promise::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--color-accent-green) 0%, var(--color-accent-orange) 50%, var(--color-secondary) 100%);
  opacity: 0.7;
}

.page-about__promise-head {
  max-width: 640px;
  margin-bottom: 32px;
}

.page-about__promise-head h2 {
  color: var(--color-text);
}

.page-about__promise-head > p:last-child {
  color: var(--color-text-subtle);
  font-size: 1.02rem;
  line-height: 1.7;
}

.page-about__promise-grid {
  display: grid;
  gap: 16px;
}

.page-about__promise-card {
  background: var(--color-secondary);
  border: 2px solid var(--color-border);
  padding: 28px;
  position: relative;
  transition: border-color 0.2s, transform 0.2s;
}

.page-about__promise-card:hover {
  border-color: var(--color-accent-green);
  transform: translateY(-4px);
}

.page-about__promise-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent-orange);
  display: block;
  margin-bottom: 12px;
  letter-spacing: 0.06em;
}

.page-about__promise-card h3 {
  font-family: var(--font-headline);
  font-size: 1.4rem;
  color: var(--color-text);
  margin-bottom: 10px;
}

.page-about__promise-card p {
  color: var(--color-text-subtle);
  line-height: 1.7;
  font-size: 0.95rem;
  margin: 0;
}

.page-about__cta {
  background: var(--color-secondary);
  border-top: 3px dashed var(--color-border);
  padding: 40px 0;
}

.page-about__cta .fb-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.page-about__cta p {
  font-family: var(--font-headline);
  font-size: 1.2rem;
  color: var(--color-text);
  margin: 0;
}

.page-about__cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

@media (min-width: 860px) {
  .page-about__hero-grid {
    grid-template-columns: 220px 1fr;
    gap: 48px;
    align-items: start;
  }

  .page-about__hero-tag {
    flex-direction: column;
    align-items: flex-start;
    border-left: 2px solid var(--color-accent-green);
    padding-left: 16px;
    margin-top: 8px;
  }

  .page-about__hero-est {
    font-size: 1.3rem;
    padding: 10px 20px;
  }

  .page-about__hero-main h1 {
    font-size: 3rem;
  }

  .page-about__origin-grid {
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: center;
  }

  .page-about__team-grid {
    grid-template-columns: 1fr 0.9fr;
    gap: 48px;
    align-items: center;
  }

  .page-about__trust-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
  }

  .page-about__promise-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}